News HZB Synergy

Research Highlights

  • A funny woolly hat protects the helmet from scratches (Image: Silvia Zerbe/HZB).)11.10.2017

    Knight helmets under the neutron beam

    It happens quite often that Nikolay Kardjilov has interesting guests. The HZB expert on neutron tomography is in demand worldwide, even when it comes to investigating valuable cultural treasures. Just recently, four knight helmets were waiting for its analysis. [...].

  • Image: HZB28.08.2017

    Solar hydrogen production by artificial leafs

    Scientists analysed how a special treatment improves cheap metal oxide photoelectrodes. [...].

  • Sequential tomography of a lupin root (yellowish green) after deuterated water (D2O) was introduced from below. The rising water front (H2O, dark blue) is displaced by the D2O from below over the course of time. The complete sequence can be viewed as a video (Created by Christian Tötzke, University of Potsdam)25.07.2017

    User research at BER II: Lupin roots observed in the act of catching water from soil – so far too quick for 3D views

    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. [...].

  • SEM-images of 3D graphene with different pore size (a,b,c, scale = 1μm). Optical properties (d,e,f) change with pore size (Credit: 10.1038/ncomms14885)18.05.2017

    Three-dimensional graphene: experiment at BESSY II shows that optical properties are tuneable

    An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. 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. [...].

  • Nanostructures trap the light, shows this illustration on the cover in Advanced Optical Materials (Credit: Adv. Opt. Mat. 5/2017) 10.03.2017

    How to increase efficiencies of ultrathin CIGSe solar cells

    Nanoparticles at the back help harvesting light.

    Ultrathin CIGSe solar cells need much less rare earth elements and energy for production. Unfortunately, they are much less efficient too. Now a team at HZB together with a group in the Netherlands has shown how to prevent the absorption loss of ultrathin CIGSe cells.  They designed  nanostructured  back contacts for light trapping and could achieve a new record value of the the short circuit current density reaching nearly the best values for thicker CIGSe-cells. [...].

  • Zeiss Orion NanoFab microscope at the HZB CoreLab CCMS (Photo: HZB). 10.03.2017

    Latest News about the Microscopy CoreLab CCMS: Customer Demonstration and Workshop Announcement

    HZB is equipped with the latest scanning electron and ion microscopes made by ZEISS and has been a member of the labs@location partner program since 2015. ZEISS uses this program to cooperate with proven expert researchers to share experience and give interested people access to its microscopes. Now the first test customer demonstration has been given at the HZB.

    [...].

Neutrons

  • A funny woolly hat protects the helmet from scratches (Image: Silvia Zerbe/HZB).)11.10.2017

    Knight helmets under the neutron beam

    It happens quite often that Nikolay Kardjilov has interesting guests. The HZB expert on neutron tomography is in demand worldwide, even when it comes to investigating valuable cultural treasures. Just recently, four knight helmets were waiting for its analysis. [...].

  • Sequential tomography of a lupin root (yellowish green) after deuterated water (D2O) was introduced from below. The rising water front (H2O, dark blue) is displaced by the D2O from below over the course of time. The complete sequence can be viewed as a video (Created by Christian Tötzke, University of Potsdam)25.07.2017

    User research at BER II: Lupin roots observed in the act of catching water from soil – so far too quick for 3D views

    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. [...].

Photons

  • Guiding the X-rays from Undulator UE48 in the BESSY II experimental hall to the CAT experiment in the Energy Materials in-situ Lab EMIL@BESSY (Photo: HZB/David Ausserhofer).12.10.2017

    Breakthrough at EMIL: First undulator radiation in the CAT experiment

    When the EMIL laboratory (Energy-Materials In-Situ Laboratory Berlin) was ceremoniously inaugurated a year ago in the presence of Federal Minister for Research Johanna Wanka, it was a major milestone for energy materials research at HZB. Ever since, HZB has been building the system that will bring X-ray beams all the way from BESSY II to the EMIL apparatuses. Until the BESSY light is fully available, the scientists have been working with X-rays from a conventional laboratory source. Now, the beamline operators have succeeded in guiding the X-rays from Undulator UE48 in the BESSY II experimental hall to the CAT experiment in the EMIL laboratory. There, it was quantitatively measured using a focus measuring chamber. [...].

  • SEM-images of 3D graphene with different pore size (a,b,c, scale = 1μm). Optical properties (d,e,f) change with pore size (Credit: 10.1038/ncomms14885)18.05.2017

    Three-dimensional graphene: experiment at BESSY II shows that optical properties are tuneable

    An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. 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. [...].

  • Comparison of the same specimen at the old Beamline (left) and the new HZB-XM-Beamline (right) (Credit: HZB).03.05.2017

    X-Ray microscopy: HZB-TXM is back in operation

    The X-ray microscope (HZB-TXM) is back in operation. The TXM offers significantly better quality images compared to the former X-ray microscopy station. [...].

  • 17.03.2017

    Innovations for our chemistry lab users: new access rules, better equipment and more support

    In regards to our last newsletter we expressed our gratitude for the large amount of beamtime feedbacks. We have promised to respond to your points of criticism to improve our service and support and we are very glad to inform you that we started our first implementation and brought our user chemistry lab up-to-date.
    [...].

Events and Dates

  • Impressions from last year's Joint BER II and BESSY II User Meeting (Image: HZB)16.10.2017

    Ninth Joint BER II and BESSY II User Meeting 2017

    The Ninth Joint BER II and BESSY II Users' Meeting will take place from December 13th to December 15th 2017 in Berlin-Adlershof and Berlin-Wannsee. The User Meeting will bring together more than 400 researchers from all over the world and from different research fields.

    [...].

  • The HZB experiment EDDI at BESSY II (Credit: HZB).12.10.2017

    Announcement: EDDI (farewell) Workshop

    After 14 years of successful user operation, EDDI will shutdown in August 2018. We decided to take this as an occasion to organize an EDDI (farewell) workshop. [...].

  • 01.09.2017

    CALIPSOplus - Convenient Access to Light Sources Open to Innovation, Science and to the World.

    The EU is providing ten million euros in funding for the project CALIPSOplus, submitted by 19 European light sources. The project consortium, of which Helmholtz-Zentrum Berlin is a member, kicked off on May 2017. CALIPSOplus is aimed at promoting the international exchange of scientists and transnational access to the light sources in Europe. Other priorities are to integrate the relatively less active regions of Europe and to initiate research projects with small and mid-sized companies. [...].

  • 24.04.2017

    Ninth Joint BER II and BESSY II User Meeting

    December 13th-15th, 2017

    Wilhelm-Conrad-Roentgen Campus, Berlin-Adlershof and Lise-Meitner Campus, Berlin-Wannsee [...].

  • Sound artist Gerriet K. Sharma is working on a project inspired by the expansion project BESSY-VSR (Photo: M. Setzpfand/HZB).10.03.2017

    Acoustic sculptures on the theme of BESSY-VSR

    The sound artist Gerriet K. Sharma works on a project inspired by the expansion project BESSY-VSR at HZB. Gerriet K. Sharma is realising the sculpture of acoustic phenomena using icosahedral speakers and a beam-forming application. [...].

General

  • A banana contains naturally occuring radioactive material in <br /> the form of potassium-40 (Photo: Creative Commons License)01.09.2017

    Do you know the "Banana equivalent dose"?

    Banana equivalent dose (BED) is an informal measurement of ionizing radiation exposure, intended as a general educational example to compare a dose of radioactivity to the dose one is exposed to by eating one average-sized banana. Bananas contain naturally occurring radioactive isotopes, particularly potassium. [...].

  • This optical zone melting furnace produces large single crystals (Credit: M. Setzpfandt/HZB).19.06.2017

    New at Campus Wannsee: CoreLab Quantum Materials

    HZB has expanded its series of CoreLabs for energy materials research. In addition to the five established CoreLabs, it has now set up a CoreLab for Quantum Materials. A research team from the HZB Institute for Quantum Phenomena in New Materials is responsible for the CoreLab and its modern equipment. The CoreLab is also open to experimenters from other research institutes.
    [...].

  • Prof. Dr. Bernd Rech becomes provisional Scientific Director of the HZB on May 1, 2017 (Photo: HZB).27.04.2017

    Prof. Dr. Bernd Rech becomes provisional Scientific Director of the HZB on May 1, 2017

    Following the succession of long-serving Scientific Director Prof. Anke Kaysser-Pyzalla to President of TU Braunschweig, the Supervisory Board of the Helmholtz-Zentrum Berlin has appointed Prof. Bernd Rech as provisional Scientific Director. He assumes this position as of May 1, 2017. Bernd Rech has headed the Institute for Silicon Photovoltaics at the HZB since 2006 and is highly esteemed worldwide as an expert in renewable energies. [...].

  • (Photo: Pixabay)23.01.2017

    Gastronomy and Shops in Adlershof

    Recently we have been asked if we could provide some information about Restaurants and Shops in Adlershof. [...].