Biocuration of microRNAs in idiopathic pulmonary fibrosis. Bartuschat, Johannes Biografie umanistiche di Dante. In: Furlan, Francesco. Letture e lettori di Dante. Umanesimo e Rinascimento. Ravenna: Angelo Longo Editore, Bioinspired event-driven collision avoidance algorithm based on optic flow. Blatt aus einer astrologischen Abhandlung: P. Theusinger, Oliver M Bleeding management in elective orthopedic surgery. Perioperative Hemostasis : Coagulation for Anesthesiologists. Berlin Heidelberg: Springer Verlag, Varela Braga, Ariane Blick nach Osten — Orientbegeisterung in Europa des In: Giese, Francine.
Oberhofen: s. Blutdruckkontrolle bei Patienten mit polyzystischer Nierenerkrankung. Bieler, Jonathan Aebi, Marcel Gil J. Shaw New York: Guilford Press, ISBN: Child and Adolescent Mental Health, 20 1 Sonnenhauser, Barbara Borrowing in context: a pragmatic perspective on Turkisms in pre-standardised Balkan Slavic.
Empirische und crosslinguistische Perspektiven. Wien: Peter Lang, Bovine TB in the pilot badger cull zone in Gloucestershire. Veterinary Record, 10 Torgerson, Paul R Veterinary Record, 12 Veterinary Record, 22 Brain correlates of numerical disabilities. The Oxford Handbook of Numerical Cognition. Oxford: Oxford Press, Preusser, M ; Weller, M Brain metastasis research: a late awakening. Chinese Clinical Oncolog, 4 2 Branding media content from storytelling to distribution. Handbook of Media Branding. Schlag, Thomas Brauchen Jugendliche die Bibel? Jugendtheologie in bibeldidaktischer Perspektive.
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Lyon: Lieux Dits, Governance im Bildungssystem. Gawinecka, Joanna CME-Labor Praxis, 10 Praxis, 11 Praxis, 14 Praxis, 15 Annema, Wijtske Praxis, 19 Praxis, 20 Hornemann, Thorsten Praxis, 24 Praxis, 23 Ars Medici, 14 15 Wallimann-Helmer, Ivo Canopy height and plant area index changes in a temperate forest between — using airborne laser scanning.
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In: New Perspectives on the Bronze Age. Competition in Banking. The Oxford Handbook of Banking. Just, N Wechsler, Daniel ; Stoop, Ruedi Complex structures and behavior from elementary adaptive network automata. In: Mantica, Giorgio ; et al. Cham: Springer, Tanner, Jakob Computer: ist der Algorithmus ein trojanisches Pferd? Das Lexikon der offenen Fragen. Metzler, Hilty, Lorenz Concise review: workshop review: understanding and assessing the risks of stem cell-based therapies.
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Confirmation Work in the View of the Workers. Congenital cytomegalovirus infection. Conrad Jon Godly. Geschichtete Zeit. Contes merveilleux. Coordinated epigenetic remodelling of transcriptional networks occurs during early breast carcinogenesis. Clinical Epigenetics, 7 1 Coping through blogging: a review of studies on the potential benefits of weblogs for stress reduction.
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Jahrbuch zum Strassenverkehrsrecht Bern: Schulthess Verlag, Das Eigene und Fremde bei John Locke. Lockes Legitimation von Eigentumsrechten und der britischen Kolonisierung Amerikas. Das Ende des Wachstums — oder der Irrtum der Raupe. Willi, Barbara ; Hofmann-Lehmann, Regina Glattbrugg, Switzerland: Literaturservice Virbac. Sender-Jedrzejewska, Anna HR-Today, 6 Rimmele, Marius Annen-Triptychon Medien des Heiligen. Paderborn: Wilhelm Fink Verlag, Gockel, Bettina Ganz, David In: Kapustka, Mateusz ; Woodfin, Warren.
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HZB researchers observe molecule dissociation in real-time
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Bern: hep Verlag, Tresch, Christine Rollenbilder bei Ursli und Flurina. In: ten Doornkaat, Hans. Alois Carigiet. Schellen- Ursli. Wildberger, Hannes Der regurgitierende Welpe. Kutter, Annette P N Der schwierige Atemweg bei Hund und Katze. Huber, Sven ; Rieker, Peter Exemplarische Erkundungen. In: Dollinger, Bernd ; Oelkers, Nina. Weinheim: Beltz Juventa, Simonek, Madeleine Steuer und Wirtschaft International, Magia daemoniaca, magia naturalis, zouber.
Wiesbaden: Harrassowitz, Uhlmann, Felix Mehr oder weniger Staat? Photonics, 2 1 Rauchfleisch, Adrian Deutschsprachige Kommunikationswissenschaftler auf Twitter: Reputationsnetzwecke der Wissenschaftskommunikation. Wissenschaftskomminikation im Wandel. Developing a Religious Identity during Confirmation Time. Avanzi, Mathieu ; et al Developing a ToBI system for French. In: Frota, Sonja ; Prietro, Pilar. Intonation in Romance. Development of a custom-designed, pan genomic DNA microarray to characterize strain-level diversity among Cronobacter spp.
Frontiers in Pediatrics Stadlbauer, Ulrike ; Meyer, Urs Developmental Neuroimmune Mechanisms in Schizophrenia. In: Lipina, Tatiana ; Roder, John. Drug Discovery for Schizophrenia. Cambridge: Royal Society of Chemistry, Reusch, Claudia E Diabetes und Panreatitis bei der Katze: Huhn oder Ei? Jahreskongress der Dt. Diagnose und Therapie der Harnstoffzyklusdefekte. Kinder- und Jugendmedizin, 15 2 Aigner, F ; Schuurmans, M M Diagnostik der Tuberkulose. In: Kuhl, Jan ; Euker, Nils. Bern: Hogrefe, Diagnostik und Leistungsbeurteilung.
Handbuch der Mathematikdidaktik. Diagnostik und Therapie des chronischen Tinnitus. Paciaroni, Tania Glaser, Elvira ; Bart, Gabriela Dialektsyntax des Schweizerdeutschen. Regionale Variation des Deutschen. Projekte und Perspektiven. Bernet, Vera Diaphragmatic palsy. In: Rimensberger, Peter C. Pediatric and Neonatal Mechanical Ventilation. Berlin Heidelberg: Springer, Stierli, Martino Die Architekturen des Bildhauers.
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International Yearbook for Tillich Research. Weber, Gianna Virginia Familienforschungs Schweiz. Muttenz: W. Hug, Horlacher, Rebekka Die Faszination der islamischen Ornamentik. Oberhofen: Stiftung Schloss Oberhofen, Hofer, Roger Anmerkungen zur Definition basaler Studierkompetenzen in Erstsprache. Zufferey, Florence A Die Inquisition : neue Prozessformen als Inbegriff mittelalterlichen Grauens. Glaser, Andreas ; Brunner, Arthur Die Jesuitenkirche in G. Kenn dein Limit. In: Walter, Ulla ; Koch, Uwe. Bonn: BZgA, Die Kehrseite der Selbstbestimmung.
Selbstbestimmung - zur Analyse eines modernen Projekts. Berlin: Parodos, Bumbacher, Stephan Peter Die Medien in den Religionen des Alten China. Die Medien der Religion. Clair, Sandra ; Saller, Reinhard Imhof, Kurt In: Hoffjann, Olaf ; Pleil, Thomas. Strategische Online-kommunikation. Wiesbaden: VS Springer, Kilian, Patrick Baden-Baden: Nomos Verlagsgesellschaft, Wirz, Markus ; Dietz, Volker In: Stirnimann, Daniel ; et al. Tietz, Christiane Die Relevanz der Theologie in der Gesellschaft.
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[ News ] 2018 01
Steve Albrecht. Lise Meitner ist eine der bedeutendsten Wissenschaftlerinnen des Die Veranstaltung findet immer montags von The new research group will concentrate on electrochemical energy storage and solar fuels. With a newly developed neutron tomography technique, an HZB team has been able to map for the first time magnetic field lines inside materials at the BER II research reactor. Tensorial neutron tomography promises new insights into superconductors, battery electrodes, and other energy-related materials.
The efficiency of a solar cell is one of its most important parameters. It indicates what percentage of the solar energy radiated into the cell is converted into electrical energy. The theoretical limit for silicon solar cells is In the journal Materials Horizons, researchers from Helmholtz-Zentrum Berlin HZB and international colleagues describe how this limit can be abolished. The trick: they incorporate layers of organic molecules into the solar cell.
These layers utilise a quantum mechanical process known as singlet exciton fission to split certain energetic light green and blue photons in such a way that the electrical current of the solar cell can double in that energy range. On 28 September , a member delegation from China gathered information about materials research at the Helmholtz Zentrum Berlin.
Representatives from various research institutes, universities and industrial companies visited the Lise-Meitner Campus in Wannsee and had discussions with the HZB researchers. Milena Meschenmoser completed her apprenticeship as a precision mechanic as the best in Berlin. From to , she completed the practical part of her training at the HZB workshop in Wannsee. Photonic nanostructures can be used for many applications, not just in solar cells, but also in optical sensors for cancer markers or other biomolecules, for example. A team at HZB using computer simulations and machine learning has now shown how the design of such nanostructures can be selectively optimised.
The results are published in Communications Physics. In the current September newsletter, which we are sending out this week, we present the anniversary website, report on the new highlight report and on successes in technology transfer. Have you already registered for the newsletter? Here is the registration link. Atoosa Meseck is researching at HZB into novel concepts for undulators, as are indispensable for producing high brightness synchrotron radiation. The transport of the six-ton device was spectacular: several cranes were used to transport the undulator just a few hundred meters from the production building to the storage ring.
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. This award is presented by the organizers of the international summer school Quantsol together with the industry. On September 3, , 14 new colleagues who are undertaking an apprenticeship, a dual course of study or a voluntary scientific year at the HZB officially started their careers.
The summer students worked on their own research projects for eight weeks. August 30th is their last day at HZB. We cordially invite you to the final presenation event at Campus Wannsee. Three selected students will give a lecture on their research projects. Afterwards, the students will be glad to report on the results and progress of their work in a poster session. Just drop by without registering - we look forward to seeing you! Ulrike Witte from the HZB school laboratory. The consortium is funded by the German Ministry of Economics and Energy with 2. A team of researchers from the Helmholtz-Zentrum Berlin HZB and the University of Potsdam has investigated heat transport in a model system comprising nanometre-thin metallic and magnetic layers.
Similar systems are candidates for future high-efficiency data storage devices that can be locally heated and rewritten by laser pulses Heat-Assisted Magnetic Recording. Measurements taken with extremely short X-ray pulses have now shown that the heat is distributed a hundred times slower than expected in the model system. The results are published in Nature Communications. On Thursday evening we will send out the next newsletter with information from the HZB. According to the new data protection guidelines, we may only send the newsletter to persons who have registered.
And what about you? Did you just subscribe? For eight weeks our summer students participate in research in an HZB team. But are they doing exactly? They are currently blogging about their projects in the HZB-Scienceblog. This enabled them to document the formation of pores in grains of metal during foaming processes at 25 tomographic images per second - a world record. In perovskite solar cells, charge carriers are mainly lost through recombination occurring at interface defect sites. In contrast, recombination at defect sites within the perovskite layer does not limit the performance of the solar cells at present.
Teams from the University of Potsdam and the Helmholtz-Zentrum Berlin HZB were able to reach this interesting conclusion through extremely accurate quantitative measurements on 1 cm 2 perovskite cells using photoluminescence. For the first time, they succeeded in investigating electronic states of a transition metal in detail and drawing reliable conclusions on their catalytic effect from the data. These results are helpful for the development of future applications of catalytic transition-metal systems. In the summer shutdown, important components in the storage ring tunnel will be replaced and overhauled.
The shutdown lasts until 30 September , and user operation will recommence on 30 October HZB scientist Dr. The ERC Starting Grant supports outstanding researchers in an early phase of their scientific careers with up to 1. Im Herbst verabschiedet die Bundesregierung das neue 7. Energieforschungsprogramm EFP. You can now register to receive the monthly HZB Newsletter automatically by email. It always contains two or three science features from research activities, information on personnel matters, and video and reading tips such as links to profiles and news reports from the HZB newspaper Lichtblick , the Campus Blog, and the Science Blog.
Magnetic solids can demagnetize upon heating. Despite decades of research, it has so far been unclear how this process works in detail. Now, for the first time, an international group has observed in a step-by-step manner how sudden heating affects the magnetic order of a ferrimagnetic insulator. The result: The magnetic order changes on two time scales.
The first process is surprisingly fast and takes only one picosecond, while the second process takes , times longer. This insight could help to increase the switching speed in magnetic storage media by at least a factor of The work is published in Science Advances. The conference is the world's largest symposium on thermoelectric materials. Sie tritt das Amt ab an, die Amtszeit dauert zwei Jahre.
They intend to jointly test OpenScience approaches for exchanging knowledge and research data in order to accelerate the development of innovative PV products worldwide. GRECO will receive three million euros in funding through The platform "GraFOx" of the Leibniz Association bundles the activities and competences of Berlin research institutes and universities in the field of oxide research for electronic applications. Now Prof. Catherine Dubourdieu has been involved as an Associate Partner. Young people from all over the world have applied to the Helmholtz Centre to take part in the annual summer programme: eight weeks of research in an HZB team, well supervised, taking their first steps in their own scientific work.
Now 21 students from eleven countries have arrived and are looking forward to their research project. They will present their results on 30 August. Hydrogen will play a central role as a storage medium in sustainable energy systems. An international team of researchers has now succeeded in raising the efficiency of producing hydrogen from direct solar water-splitting to a record 19 per cent. They did so by combining a tandem solar cell of III-V semiconductors with a catalyst of rhodium nanoparticles and a crystalline titanium dioxide coating.
Noch bis zum 9. On 27 June in Berlin, the HZB was awarded the "audit berufundfamilie" certificate for its strategically designed family and life-phase conscious personnel policy. Franziska Giffey. At the spring meeting of the European Materials Research Society from June in Strasbourg, Hannes Hempel received the prize for the best talk and Sara Niedenzu was awarded for her poster. The E-MRS spring conference is the largest materials research conference in Europe with 2, participants. HZB researcher introduces unique operando characterization by soft X-ray spectroscopy [ This performance is among the best in the world and demonstrates the leading role of HZB in this technology in Germany and Europe.
Why is the light white? And the sky blue? Children ask many questions and want to try things out. For this purpose, pre-school children had many opportunities at the "Day of the Little Researchers" in the HZB school lab. They used self-made spectroscopes to examine the colours of light. A 1 cm 2 perovskite silicon tandem solar cell achieves an independently certified efficiency of This was presented this week at an international conference in Hawaii, USA.
It is a perfect opportunity for researchers from Helmholtz-Zentrum Berlin to present thin-film photovoltaic technologies and projects, including for example perovskite solar cells and tandem solar cells. On 14 June, Prof. Solarzellen, die hocheffizient, sehr preiswert und lange haltbar sind. Wasserstoff, der mit Sonnenenergie gewonnen wird und Autos antreibt. The authors report on the latest developments in neutron tomography, illustrating the possible applications using examples of this non-destructive method. Neutron tomography has facilitated breakthroughs in so diverse areas such as art history, battery research, dentistry, energy materials, industrial research, magnetism, palaeobiology and plant physiology.
He and his team develop a key component for new accelerator facilities, namely high brightness electron sources. So liege der Wirkungsgrade bei kommerziellen Modulen aktuell bei zirka 20 Prozent. Lesen Sie mehr im Interview des pv magazine. The Helmholtz Virtual Institute MiCo offers a platform through which the Helmholtz-Zentrum Berlin conducts joint research with universities and other partners on the topic of microstructures for thin-film solar cells.
The journal Modelling and Simulation in Materials Science and Engineering recently selected an article produced through MiCo as the highlight of those published by the journal during At University of Florida, Hages will advance his work in developing energy materials and looks forward to continued collaborations with his HZB colleagues. September in Hirschegg, Kleinwalsertal, Austria.
The international research school on solar energy promotes exchange between Germany and Israel and excellent conditions for PhD students. This provides the foundation for future financing of HZB. The delegation came to learn more about the research topics, infrastructures and user service at HZB. The plan is to establish Beijing as one of three major national innovation centres with large-scale facilities for the international user community.
The reversibility of the process opens up new possibilities in the fields of material processing, optical technology, and data storage. Die Projekttage sind kostenfrei. Specific changes in the composition of kesterite-type semiconductors make it possible to improve their suitability as absorber layers in solar cells.
As a team at the Helmholtz-Zentrum Berlin showed, this is particularly true for kesterites in which tin was replaced by germanium. The work was selected for the cover of the journal CrystEngComm. In a very lively and active workshop, drivers and barriers were identified. In March , independent reviewers confirmed that HZB is still a certified family-friendly employer. The prize is awarded for outstanding research in the field of magnetism.
Physicists at Helmholtz-Zentrum Berlin have been able to store two separate electron beams in one storage ring. The twin orbit operation mode can serve users with different needs of the time structure of the photon pulses simultaneously and offers elegant options regarding the future project BESSY VSR. Experts from the construction industry, photovoltaic research field, and the financial sector will discuss innovative solutions for solar facades in combination with energy efficiency in buildings and cities in Berlin, March 19thth, Photovoltaics integrated into buildings represent an important component for energy-efficient cities of the future.
Online registration is open until wednesday 14th March. Students are admitted for a reduced fee. We wold like to inform you that a false alarm was triggered at p. After clarifying the trigger of the false alarm, a verbal all-clear was given over the campus PA system.
Polymeric carbon nitrides exhibit a catalytic effect in sunlight that can be used for the production of hydrogen from solar energy. However, the efficiency of these metal-free catalysts is extremely low. A team at the Tianjin University in China, in collaboration with a group at the Helmholtz-Zentrum Berlin, has increased the catalytic efficiency of these polymeric carbon nitrides by a factor eleven through a simple process resulting in a larger surface area. He works in an interdisciplinary area spanning physics and chemistry for modelling transport processes in materials, at interfaces, and in electrolytes.
A team at the HZB has succeeded in growing nanocrystals of gallium arsenide on tiny columns of silicon and germanium. This enables extremely efficient optoelectronic components for important frequency ranges to be realised on silicon chips. Raul Garcia Diez convinced the jury and was awarded the Dissertationspreis Adlershof Perowskit-Solarzellen haben einen rasanten Aufstieg hingelegt — und vermutlich einen noch steileren vor sich.
Die Materialien sind so interessant, dass jetzt schon Industriepartner auf den Zug aufspringen, um diese Entwicklung nicht zu verpassen.
- Sprachliche Entgleisungen.
- Lawful Abuse: How the Century of the Child became the Century of the Corporation;
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Thermoelectric materials can use thermal differences to generate electricity. Now there is an inexpensive and environmentally friendly way of producing them with the simplest of components: a normal pencil, photocopy paper, and conductive paint are sufficient to convert a temperature difference into electricity via the thermoelectric effect.
This has now been demonstrated by a team at the Helmholtz-Zentrum Berlin. Helmholtz-Zentrum Berlin is involved in several of the projects. The first training positions are already advertised. Oliver Rader has shown that the puzzling properties of samarium hexaboride do not stem from the material being a topological insulator, as it had been proposed to be. Theoretical and initial experimental work had previously indicated that this material, which becomes a Kondo insulator at very low temperatures, also possessed the properties of a topological insulator.
The team has now published a compelling alternative explanation in Nature Communications, however. Simple organic molecules form complex materials through self-organization [ Young scientists are invited to participate in the Young Investigators Workshop which takes place from 22 to 27 April in Grainau. Please apply by 20 th February The nominal cell operating life of perovskite solar cells is strongly influenced by their inner architecture. They combined experiments with numerical simulations in order to explain this observation.
Perovskite solar technology leader Oxford PV collaborates with leading German research centre to support the accelerated transfer of its technology into silicon cell manufacturing lines. Intensive research has been going on for years to develop the worldwide unique key components required for this accelerator. Now, the scientists and engineers have reached a very important milestone: from the interactions between cathode, laser pulse and electric field inside the cavity, the first electrons have been produced and accelerated.
Bernd Rech, an expert in renewable energies, into its circle of members. For many years, and in many capacities, he has been a champion for knowledge transfer. The federal- and state-funded academy advises social and political actors on technological matters. The Friends of Helmholtz-Zentrum Berlin recognised outstanding work in the field of synchrotron radiation with an Innovation Award, and the best doctoral dissertation with the Ernst-Eckard-Koch prize.
At an event at HZB, 70 employees and guests were eagerly awaiting a package from Siberia. This was in December EU group project presents its results: high efficiencies with less material [ A research team at the HZB has precisely characterised for the first time the various types of defects in kesterite semiconductors. The findings point to a means of guided optimisation for kesterite solar cells. The physicist is an expert in the field of functional metal oxides that are interesting candidates for future information technologies. It measures many angles and multiple energy transfers simultaneously and thus increases the amount of data measured per hour by about a factor of ten.
This enables neutron users to make optimal use of their beam time. Applications as light-emitting diodes and solar cells [ A Helmholtz-Zentrum Berlin HZB team together with experts at Ulm University and the University of Stuttgart have designed an electron spin resonance spectrometer that fits a box 10 cm on a side. The team presented the device to a technology jury at the international IEEE Sensors conference in Glasgow, Scotland and received the first prize of the best live demonstration award.
ESR spectroscopy is extremely useful for research in energy-related materials such as catalysts, solar cells, and battery electrodes [ Do you know who Hermann von Helmholtz was? At this question, most of the primary school kids shook their head. Yet, the namesake of the Helmholtz Association was one of the most important natural scientists of the 19th century, and one of the last universal scholars. Through this cooperation, HZB will be advising Argentinian researchers on the construction of two neutron instruments.
Also planned is an exchange programme for researchers from both countries. A new strategic group comprising the organisations operating European accelerator-based light sources has been founded in Brussels. November , von 18 Uhr bis ca. The young scientists will be researching at eight Helmholtz centres for two years before returning to China. HZB is also involved in the exchange programme, which runs from to HZB scientists have identified a mechanism with which it may be possible to develop a form of magnetic storage that is faster and more energy-efficient.
They compared how different forms of magnetic ordering in the rare-earth metal named dysprosium react to a short laser pulse. They discovered that the magnetic orientation can be altered much faster and with considerably less energy if the magnetic moments of the individual atoms do not all point in the same direction ferromagnetism , but instead point are rotated against each other anti-ferromagnetism.
The study was published in Physical Review letters on 6. November and on the cover of the print edition. The goal is to combine thin-film semiconductors made of silicon and kesterites into especially cost-effective tandem cells having efficiencies of over 20 per cent. Several large research institutions from Europe, Morocco, the Republic of South Africa, and Belarus will be working on the project, as well as two partners from industry.
Koch received the award for his research on hybrid electronic materials and their interfaces in electronic and optoelectronic components. During the European Conference on Thermoelectrics her poster contribution was selected for an award. The young scientist described a solution based synthesis in order to design more efficient thermoelectric materials.
This far exceeded the expectations of the event hosts. The knowledge shared on Industry Day will serve as the basis for deepening the collaboration even further with strategically important companies in the scope of HySPRINT. What is more, he achieved this despite shortening his three-year apprenticeship by a whole year. A specific uranium compound has puzzled researchers for thirty years. Although the crystal structure is simple, no one understands exactly what is happening once it is cooled below a certain temperature. Now physicists have characterised this hidden order state more precisely and studied it on a microscopic scale.
To accomplish this, they utilised the High-Field Magnet at the HZB that permits neutron experiments to be conducted under conditions of extremely high magnetic fields. Over three weeks, they rode a total of 16, kilometres, landing them in seventh place — right behind the Berlin fire brigade and TU Berlin. And the best part is, together, the HZB colleagues saved kilograms of carbon dioxide. During these studies they discovered a transition between two different topological phases, one of which is ferroelectric, meaning a phase in the material that exhibits spontaneous electric polarisation and can be reversed by an external electric field.
This could also lead to new applications such as switching between differing conductivities. As many as coffee-to-go cups are used every day in the Wannsee canteen. These cups cannot be reasonably recycled, and instead end up as land fill. Now, the canteen is putting an end to this wastage. As of the 16th of October, coffee to go can only be bought in the new HZB returnable cups available for 5 euros at the checkout or served in your own cup, which you bring from home. Auch der Einsatz von Theaterrauch ist geplant. An anecdote from the canteen, a curious lab photo, and an exciting encounter — there are many stories which just need to be written up.
You will read in the blog, for example, that a HZB staffer cleared paths with a chain saw the whole night long during the Xavier storm, and other interesting stories. Synchrotrons are outstanding tools for studying materials, cells and even cultural assets. Yet, many researchers in Eastern Europe are unaware that they are entitled to use them. The EU project Calipsoplus supports potential users from these countries. Their international collaboration was successful in delineating individual steps in the catalytic oxidation of water to dioxygen in photosystem II.
They published their study in the journal Structural Dynamics. Photosystem II is a part of the of photosynthetic electron transport chain, a process that is responsible for the conversion of solar energy to chemical energy in plants, algae and cyanobacteria. Tuesday 3. October is a special day in Germany. With its 28 debuts and premieres, and more than artists from 27 countries, the 2nd edition of KONTAKTE is the hub for electroacoustic music and sound art in Berlin. Graphene possesses extreme properties and can be utilised in many ways.
Even the spins of graphene can be controlled through use of a trick. This had already been demonstrated by a HZB team some time ago: the physicists applied a layer of graphene onto a nickel substrate and introduced atoms of gold in between intercalation. The scientists now show why this has such a dramatic influence on the spins in a paper published in 2D Materials. As a result, graphene can also be considered as a material for future information technologies that are based on processing spins as units of information. Intensive discussions during the Industry Day will be the starting point for future cooperation.
HZB has an extensive online presence that has grown steadily over the years. There is a lot of exciting content — so much, in fact, that it becomes more and more difficult to surf. To make it user friendly once again, our website needs a relaunch, and will continue to need periodical relaunches in future. This is where you can help! What do you use the HZB website for? Until the BESSY light is fully available, the scientists have been working with X-rays from a conventional laboratory source.
There, it was quantitatively measured using a focus measuring chamber. The 16th Atomiade will be held in Varese, Italy, from 8 to 11 June The hosts request that people register informally now so that they can optimally plan the event. Every three years, employees of European research institutes take part in the Atomiade sporting competition. The event is held in the name of pleasure of sports and the mutual sharing of news and information.
Scientists analysed how a special treatment improves cheap metal oxide photoelectrodes [ A research team at Helmholtz-Zentrum Berlin HZB has shown for the first time how laser modulation of magnetic properties in materials is influenced by thermal effects and how the process occurs under moderate experimental parameters. At the same time, the scientists discovered a previously unknown dependence on the thickness of the magnetic layer.
This is an important clue for our theoretical understanding of optically controlled magnetic data storage media. The findings are published today in the journal Scientific Reports. Theoretical physicists have devised a mathematical model of two different molecules reacting within so called nanoreactors that act as catalysts. They gained surprising new insights as to what factors promote reactions and how to control and select them.
The model is relevant for a wide range of research fields, from biophysics to energy materials. Lupins not only produce colourful blossoms but also nutritious beans rich in proteins. Just how these plants draw water approaching their roots in soil has now for the first time been observed in three dimensions by a University of Potsdam team at the HZB-BER II neutron source in Berlin. To accomplish this, they worked with the HZB imaging group to improve the temporal resolution of neutron tomography more than onehundred-fold so that a detailed 3D image was generated every ten seconds.
This ultrafast neutron tomography is generally suitable as well for analyses of dynamic processes in porous materials. Now, groups involved in the graduate school have demonstrated perovskite solar cells with record-efficiencies of over 20 percent. This confirms the graduate school is at the forefront of this research in Germany and internationally highly competitive.
For the first time an international team realized direct writing of silver nanostructures using an electron beam applied to a substrate. Silver nanostructures have the potential to concentrate visible light at the nanoscale. Potential applications include sensor design to detect extremely small traces of specific molecules, as well as devices for optical information processing. A information brochure, illustrated throughout with a fusion of photos and sketches, serves as the new business card of HZB. Kindergarten children are inquisitive and want to know how everything works — and they ask a great deal of questions.
The project consortium, of which Helmholtz-Zentrum Berlin is a member, kicked off on May Other priorities are to integrate the relatively less active regions of Europe and to initiate research projects with small and mid-sized companies. Klaus Habicht has successfully completed the university-level teaching accreditation process in the Faculty of Mathematics and Natural Sciences at the University of Potsdam and received his official university-level teaching qualification for the physics of condensed matter.
Habicht has conducted numerous lectures and seminars at the University of Potsdam since , in particular in solid-state physics and methods in neutron research. Helmholtz-Zentrum Berlin has expanded its series of CoreLabs for energy materials research. The CoreLab is also open to experimenters from other research institutes. Focussed ion beams are highly useful tools for researchers in various disciplines. Samples can be etched in the micro- and nanometre range with them. Modern ion microscopes as well as their complementary methods and techniques are available at the HZB and can be utilised by scientists from universities and institutes from the world over.
Now for the first time, the HZB is organising a workshop to introduce these methods and their areas of application. It will take place November 6th and 7th. The deadline for submitting abstracts is June With the transformation of the BESSY II light source into a variable-pulse-length storage ring, Berlin will become even more attractive as a location for science to researchers from the world over [ A paper on X-ray tomography of various types of batteries has been published as a highlight in the exclusive special edition of the Journal of Physics D: Applied Physics.
At the major international photovoltaics exhibition from 31 May to 2 June , Helmholtz-Zentrum Berlin HZB will be exhibiting solar energy research projects and presenting opportunities for industrial cooperation in the field of photovoltaics PV. There has never been such rapid progress in a new material for solar cells.
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Scientists around the world are therefore working on this new class of materials. They point out what opportunities exist for advancing this class of materials, combining them with other semiconductors, and where limitations lie. The experiments show that the plasmonic excitations oscillations of the charge density in this new material can be precisely controlled by the pore size and by introducing atomic impurities. This could facilitate the manufacture of highly sensitive chemical sensors. A team at the Helmholtz-Zentrum Berlin HZB has for the first time fabricated a nanomaterial made from nanoparticles of a titanium oxide compound Ti 4 O 7 that is characterised by an extremely large surface area, and tested it as a cathode material in lithium-sulphur batteries.
The highly porous nanomaterial possesses high storage capacity that remains nearly constant over many charging cycles. Matthew T. He investigates how carbon dioxide and water can be converted electrochemically into hydrocarbons such as methane and methanol by using renewable energies. Matthew Mayer will receive , euros per year over a period of five years. The two methods help researchers to gain a detailed insight into the processes taking place inside cells. Leone Spiccia, who passed away in December Leone held a professorship at Monash University in Australia and was connected with us through Humboldt and Helmholtz International Fellowships.
To continue our work in his spirit, a close friend and collaborator of Leone, Prof. Douglas R. It included both experimental and theoretical projects on molecular and chemical dynamics, phase transitions and switching as well as fundamental light-matter interaction. Mai haben wir Prof. Anke Kaysser-Pyzalla mit einem Festkolloquium feierlich verabschiedet.
Following the succession of long-serving Scientific Director Prof. Bernd Rech as provisional Scientific Director. He assumes this position as of May 1, Bernd Rech has headed the Institute for Silicon Photovoltaics at the HZB since and is highly esteemed worldwide as an expert in renewable energies. Wie sieht die Arbeit von Wissenschaftlerinnen, Ingenieurinnen oder Programmiererinnen aus?
An international team has shed light onto interactions between nanodiamonds and water molecules. Experiments at synchrotron sources showed how hydrogenated groups on nanodiamond surfaces change the network of hydrogen bonds in the aqueous environment and may potentially influence the catalytic properties of nanodiamonds, for instance for the production of solar fuels from CO 2 and light. Newcomers and young scientists in solar energy research can register now for the The school is organized by the Helmholtz-Zentrum Berlin and the Technical University of Ilmenau and will be held from 3.
Physicists achieved a robust and reliable magnetization switching process by domain wall displacement without any applied fields. The effect is observed in tiny asymmetric permalloy rings and may pave the way to extremely efficient new memory devices. At HZB, she is researching functional hybrid materials that consist of colloid particles. They observed how the energy of incoming photons can be absorbed by the molecule without destroying important bonds.
Global demand for photovoltaic systems is rising sharply. CIGS thin-film modules have become a hot topic for the solar industry. International experts will convene in Stuttgart on May 30, , at the annual IW-CIGSTech workshop to discuss past and potential future technical and industrial advances in this solar technology.
A milestone has been reached in the expansion of energy materials research at the Lise-Meitner Campus: on 23 March , the celebration was held for laying the foundation stone of a laboratory building that will offer a multitude of methods for synthesising and characterising energy materials. A team has investigated more than one hundred iron-nickel catalysts containing various admixtures of chromium.
The team showed that an increasing proportion of chromium primarily influences the energy levels of the iron electrons, which are important for the catalytic effect. The results of this high-throughput study will assist the knowledge-based search for better specific catalysts. His aim: He wants to improve Perovskite solar cells which are one of the most promising material classes to be discovered in the last few years.
The scientist will study the materials and interfaces of perovskite solar cells in order to improve their long-term stability. Eva Unger is working on scaling all processing steps to enable manufacturing of perovskite solar cells on larger areas, thus brigding he gap between lab and industry. Leading experts from all fields of spectroscopy give lectures, share their latest results, and present future research strategies. World-reknowned physicist Dr. Uschi Steigenberger has been honoured with one of the highest decorations in Great Britain for her services to the sciences.
Jo Johnson. Nanoparticles at the back help harvesting the light. The Conference will take place from 5 th to 7th July - please register until April 30th [ Based on these results, they now expect to have an extremely sensitive method for detecting ion pairs in solutions. With support from the Polish Ministry of Science and Higher Education, the facility near Warsaw is currently being upgraded with latest generation technology, offering attractive research opportunities for neutron scientists from Germany and Europe.
They are about to intensify this cooperation.
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The two institutes are establishing a joint research group dedicated to studying the biochemistry of genetic information processing. April ist wieder Girls' Day! The aim of the Helmholtz school labs is to make science fun for children and adolescents. Helmholtz-Zentrum Berlin has run a school lab on the Wannsee campus since and on the Adlershof campus since During this time, more than 20, visitors have participated in the age-appropriate project days at HZB — and the numbers continue to rise.
Approximately components were safely packed in 43 wooden crates weighing just under 30 tonnes for the sea voyage from Hamburg to Port Botany, Australia. The newly built time of flight spectrometre NEAT has welcomed its first users: Jie Ma from Shanghai Jiao Tong University and his colleague Zhilun Lu examined magnetic excitations in crystalline samples and enjoyed fast data rate and high flexibility of instrumental configurations.
NEAT team is now looking forward to further new studies and user experiments! Alex Redinger will be receiving two million euros in funding from the Luxembourg National Research Fund for expanding his research into solar cells materials. This is combined with an assistant professorship at the University of Luxembourg with the possibility of tenure. This involves irradiating the tumour with fast hydrogen nuclei protons that have been accelerated to precisely set energies. These protons penetrate the healthy tissue and only release their energy in the tumour itself. As of 1 January , Dr.
In close coordination with the Scientific Project Managers Prof. Andreas Jankowiak and Prof. Jens Knobloch, Schnizer is supervising, among other things, the construction, infrastructure and integration of the necessary modules into the storage ring. Development of demonstrators measuring up to ten square meters in area planned [ From now on, young scientists PhD students, master students, and young postdocs are invited to participate in the Young Investigators Workshop that will take place from 23 rd to 28 th April at the Eibsee-Hotel in the Bavarian Alps.
It focuses on the research topics of the Helmholtz Virtual Institute and includes both experimental and theoretical projects on molecular and chemical dynamics, phase transitions and switching as well as fundamental light-matter interaction. Sunpartner Technologies and Helmholtz-Zentrum Berlin sign license agreement [ Helmholtz-Zentrum Berlin is receiving 7. These components will be needed for operating the next generation of novel, high-performance light sources. The laboratory will also provide complex superconducting component test beds for use by companies and research institutes in the region.
The research portfolio, which was focused on kesterites, does now include wide bandgap semiconductors and thermoelectrica as well. It is expected to be available to the international scientific community beginning in under the name "Spatz". He will be researching into how carbon dioxide and water can be converted electrochemically into hydrocarbons such as methane and methanol using renewable energies. Matthew Mayer will receive , euros per year over a period of five years for establishing and running his Young Investigator Group.
The new group is working to prolong the life span of perovskite solar cells to 25 years and longer. The election took place December 14, in a joint session with the University Advisory Council. The Ministry will now take the recommendation under consideration. During this time, she has placed the HZB in an excellent position within the German and international research landscape and noticeably elevated the visibility of its research capabilities. Dezember vergab der Freundeskreis Helmholtz-Zentrum Berlin zum Wer sie verpasst hat, kann sie hier anschauen.
A Poster prize was awarded to the best poster out of Pioneering new areas of physics through measurement of quantum effects [ Magnetic ground states spectroscopically ascertained [ Singlet fission could have a central role in the future development of solar cells. P2X will advance research into converting electrical energy from the sun and wind into basic chemical compounds, gaseous energy media, and fuels.
A total of 17 research institutions, 26 industrial enterprises, as well as three non-governmental organisations are involved, and the BMBF is funding the first development phase of the project at a level of 30 million Euros. The HZB management congratulates Ms. Speeding up CIGS solar cell manufacture [ Particularly in the soft X-ray range experimentalists are lacking a broadband method to correlate ultrashort X-ray and laser pulses in space and time.
The results are published in the journal of "Structural Dynamics". Advancing energy materials research together [ She and her team are investigating defects in material systems for generating solar fuels, using the diverse in-operando characterisation methods offered by the synchrotron source BESSY II. At the new laboratory, which offers direct access to the brilliant light of the electron storage ring BESSY II, researchers are looking to synthesise and analyse materials for future renewable energy generation.
Around 20 million euros were invested in the construction of the laboratory. An HZB team has developed a new approach to conduct photoemission spectroscopy of molecules in solution. This has been difficult up to now because the sample needed to be situated in vacuum — but liquids evaporate. The work has now demonstrated it is feasible to replace the solvent with an ionic liquid of low vapor pressure, which does not perturb the sample characteristics.
This allows the molecules to be excited with a laser pulse and to record the behaviour of the excited energy states. It provides insight into the physical and chemical processes of novel liquid energy materials that might be employed in organic solar cells or catalysts, for instance.
An international collaboration at BESSY II has discovered a new method to inscribe exotic magnetic patterns such as magnetic monopoles into thin ferromagnetic films. Such unconventional orientation of magnetic domains might open a new path for the design of energy efficient data storage. The new materials system consists of regular arrays of superconducting YBaCuO-dots covered with an extremely thin permalloy film. A shortly applied external magnetic field leads to the creation of supercurrents within the superconducting dots.
These currents produce a complex magnetic field pattern, which is inscribed into the permalloy film above. The results are published in Advanced Science. These discussions help HZB identifying prospective scientific fields and — very importantly - the expectations, needs and requirements from the user communities for cutting edge science with synchrotron radiation. Here is the workshop programme. Diana Quintero Castro has been appointed as associate professor in the faculty of science and technology at the University of Stavanger. She will continue her research focuses on magnetic materials by using neutron scattering at different neutron sources.
She has accepted her appointment and will leave HZB at the end of December, Vom Nano-sized metallic wires are attracting increasing attention as conductive elements for manufacturing transparent electrodes, which are employed in solar cells and touch screen panels. In addition to high electric conductivity, excellent optical transmittance is one of the important parameters for an electrode in photovoltaic applications. An international team headed by HZB scientist Prof. Michael Giersig has recently demonstrated for these applications that networks of metallic mesh possessing fractal-like nano-features surpass other metallic networks in utility.
These findings have now been published in the most recent edition of the renowned journal Nature Communications. In der neuen Ausgabe erwarten Sie viele interessante Themen. Oktober freuen. Hier geht es zur Online-Ausgabe. With up to now more than solved structures of protein molecules, these beamlines are by far the most productive ones in Germany and are in vigorous demand by groups from either an academic and industrial research area.
The newly developed expert system identifies small molecule fragments bound to proteins in the raw X-ray diffraction data. These fragments represent suitable starting points for the development of an active substance. Using a series of samples, the collaborating partners demonstrated that the expert system works reliably and can speed up the search for a suitable active agents.
Near the museum island, in the heart of Berlin, the International Conference "Dynamic Pathways in Multidimensional Landscapes " has taken place last week. September Co-editor is HZB researcher Dr. Daniel Abou-Ras. A total of eleven authors from HZB wrote chapters for this reference. It provides a comprehensive overview of many characterisation and modelling techniques that can be employed for solar cell materials and components.
In the realm of plants, capillary forces are a widely observed impetus for actuation. They are the physical basis for the expansion of porous materials during uptake of fluid. Such materials include the cones of conifers with their readily observable movement during drying or wetting. Scientists at the Chair of Biogenic Polymers of the Technical University Munich, located at the Science Center Straubing, have succeeded in retaining this plant-derived movement when the respective plant has been replaced by an artificial petrification process.
Thereby, they laid the foundations for a new generation of sensoric materials. Die Vernissage findet um Uhr statt. Mean free path of electron scattering in liquid water considerably shorter than supposed [ August The mission was to train a new generation of experts and to increase the efficiencies of Kesterite solar cells.
Now, at the end of the project, these goals have been perfectly reached. The capacity of lithium-ion batteries might be increased theoretically by six times by using anodes made of silicon instead of graphite. It was shown that extremely thin layers of silicon would be sufficient to maximise the load of lithium. The results are published in the journal ACSnano. Coming from all over the world, 18 students have joined HZB as guests for this summer. From August 1 until September 23 they take part in the international summer student programme, HZB is organising since over 25 years. During the following weeks, the students can work in close cooperation with HZB teams on a project in energy materials research.
Theoretical chemist Dr. Annika Bande is modelling fast electron processes, while Dr. Tristan Petit is investigating carbon nanoparticles. Annika Bande has now been awarded an ancillary grant of an additional , Euros from the Volkswagen Foundation to fund another doctoral student position for three years. The doctoral research will connect the two Freigeist research projects with one another.
The shell for the bERLinPro building — the test facility for an energy-recovery linear accelerator at Helmholtz-Zentrum Berlin — is now complete. A novel and rare state of matter known as a quantum spin liquid has been empirically demonstrated in a monocrystal of the compound calcium-chromium oxide by team at HZB. What is remarkable about this discovery is that according to conventional understanding, a quantum spin liquid should not be possible in this material. A theoretical explanation for these observations has now also been developed.
This work deepens our knowledge of condensed matter and might also be important for future developments in quantum information. The results have just been published in Nature Physics. Sie wird am Freitag, den Juli zu sehen sein. Der Eintritt ist frei. From 13 to 19 July , the artist will be recording sounds on location [ All regular HZB scientists as well as visiting scientists can now use the diverse X-ray diffractometry equipment at the X-ray CoreLab, effective immediately.
Instrument time will be allocated via the Online Calendar. Klaus Lips, Dr. Alexander Schnegg and Prof. Emad Aziz have been working several years already with Prof. Leone Spiccia, an internationally renowned chemist at Monash University, on energy materials science. Thomas Struth is internationally considered one of the most important artists of his generation.
For the first time, his work will be displayed at the Berliner Martin-Gropius-Bau. The exhibition will feature approximately 37 large-format photographs from the years through Right at the entrance, the large-scale work "Measuring, Helmholtz-Zentrum, Berlin " is placed. The exhibition can be visited until 18 September. About international attendees, mainly from Europe, Asia and North America came together to get an extensive overview of the latest CIGS scientific and technological developments in CIGS thin-film solar cells and their industrial applications worldwide. Our photographer Phil Dera caught the best moments of this evening with his camera.
Researchers retain exclusive access to their data for five years [ An international collaboration has now demonstrated a completely new approach to increase data density in storage media. These magnetic domains are otherwise very stable and therefore suited for long-time data storage. The results have been published in Phys. Letters now. An international team has discovered an elegant way to decouple organic nanosheets grown on metal surfaces.
The strong influence of the metal on the network was reduced. This opens up new ways to transfer organic nanostructures from metal surfaces onto more suitable substrates for molecular electronics. Catherine Dubourdieu. On this occasion we like to draw your attention to the talk of Dr. Graphene on silicon carbide could be an interesting candidate for future spintronik components.
Squeezing gold atoms between the semiconducting substrate and graphene does enhance spin-orbit interaction at hot spots and shows ways to controll the spins. This paves the way to fast and energy efficient ultrahigh density data storage. The results are published now in the new journal Physical Review Applied. Juni zur Langen Nacht der Wissenschaften. Warum braucht man solche aufwendigen Anlagen? Kommen Sie am Juni vorbei — und finden Sie es selbst heraus. Dentin is one of the most durable biological materials in the human body.
Measurements performed at BESSYII, the Helmholtz-Zentrum Berlin's synchrotron radiation source, showed that it is the mechanical coupling between the collagen protein fibers and mineral nanoparticles which renders dentin capable of withstanding extreme forces. Results from this research have been recently published in the journal Chemistry of Materials. Er will synthetische Nanodiamanten entwickeln, die mit Sonnenlicht und Kohlendioxid solare Brennstoffe wie Methan produzieren. The program offers a structured, three-year period of multidisciplinary research combined with an integrated curriculum in Analytical Sciences.
Deadline for application is June 13th, An HZB team has combined two different analytical methods at the BESSY II synchrotron source in order to extract more information about the chemistry of transition-metal compounds in solution. These kinds of compounds can act as catalysts to promote desirable reactions in energy materials, but their behaviour has not been completely understood thus far.
The team demonstrated how a detailed picture of the electronic states can be ascertained by systematically comparing all of the interactive electronic processes in a simple system of aqueous iron II. The results have now been published in Scientific Reports , the open access journal from Nature Group publishing.
The Helmholtz Association is supporting the project for the next five years with 1. Application submission will be possible until June 30, In addition, they were able to manipulate the orientation of the spins of these currents. They thereby demonstrated that this class of materials is suitable for data processing based on spin. Raus aus der Schule, rein ins Labor: Dem Aufruf folgten deutschlandweit rund Now, the Online registration is open.