News
A New Light on Quantum Science
Research team has, for the first time, directly measured the particle exchange phase of photons:
A research team of the Institute of Physics of the Humboldt University of Berlin together with cooperation partners Max Born Institute (Berlin) and DLR Institute of Optical Sensor Systems (Berlin) has, for the first…
Perovskite solar cells: Hydrogen bonds measured
Research results provide important information for perovskites materials research for solar cells:
The evaluation of X-ray measurements on methylammonium perovskite semiconductors now shows what role hydrogen bonds play in these materials. In addition, the HZB team showed that radiation damage by soft X-rays to…
Creating and reshuffling skyrmions ultrafast
Team from MBI, HZB and MIT researches skyrmions – small magnetic textures that may become an ingredient in novel memory and logic devices:
Smaller, faster, more energy-efficient: future requirements to computing and data storage are hard to fulfill and alternative concepts are continuously explored. Small magnetic textures, so-called skyrmions, may…
Operando Analysis of Aging Mechanism in Lithium-Sulfur Batteries
PTB team investigates causes for the capacity decrease:
High-energy density batteries play a crucial role for renewables, both as stationary storage system as well as for electric automotive applications. Every battery suffers under degradation effects leading to capacity…
Diode lasers meet soil crumbs
Why portable Raman systems are now used in agriculture – the RaMBo measuring system from the Laser Sensors Lab at the Ferdinand-Braun-Institut in Adlershof:
Last November, it was finally done. The RaMBo measuring system was deployed for the first time on a field in Potsdam-Marquardt. Its goal: to determine the nutrient content of the soil. Phosphorus and nitrogen, in…
ICULTA is becoming a flagship of the UV LED community
Review of the 2021 edition of the International Conference on UV LED Technologies & Applications:
For the second time, ICULTA – the ‘International Conference on UV LED Technologies & Applications’ – presented a forum for the UV LED community to exchange ideas and results on cutting-edge topics. The program of last…
New X-ray microscope put into operation at BESSY II
MYSTIIC offers higher precision and more options for scanning surfaces and investigating bulk samples in transmission:
A new X-ray microscope has started operation at the Energy Materials in situ Lab (EMIL). It is a scanning transmission X-ray microscope designed to examine both sample surfaces and bulk sample. With the soft X-ray…
Direct observation of the ad- and desorption of guest atoms into a mesoporous host
Research at the PTB X-ray beamline of the HZB BESSY II synchrotron lays the foundations for new insights into energy materials:
Battery electrodes, storage devices for gases, and some catalyst materials have tiny functional pores that can accommodate atoms, ions, and molecules. How these guest atoms are absorbed into or released from the pores…
LTB strengthens its Research and Development department
With Dr. Lutz Pfeifer as the new Head of Research Spectroscopy, and Norman Bensmann as the new Head of Laser Development, the company is realigning itself:
Managing Director Christian Scholz: “We want to spread the growing scope and requirements of the departments over several shoulders. In recent years, we have grown steadily in both areas. In order to do justice to the…
Topological protection versus degree of entanglement of two-photon light in photonic topological insulators
Researchers from HU, MBI, and the University of Central Florida (USA) have identified criteria for robust transport:
Originally discovered in condensed matter systems, topological insulators are two-dimensional materials that support scattering-free (uni-directional) transport along their edges, even in the presence of defects and…
FBH presents advances in UV LEDs towards application at ICULTA conference
From disinfection to use against pathogens on human skin:
The Ferdinand-Braun-Institut (FBH) presents current research results at the virtual ICULTA 2021. In particular, the reliability of UVB and UVC LEDs has been significantly improved – an important step towards their…
Bundling unique European expertise for spaceborne devices
Ferdinand-Braun-Institut, SweGaN AB, and University of Bristol are partnering in the Kassiopeia project to develop high-performance Ka-band GaN MMICs e.g. for satellite communications and radar applications:
Ferdinand-Braun-Institut, SweGaN AB, and University of Bristol are partnering in the European Space Agency funded Kassiopeia project. The teams join forces to develop high-performance Ka-band GaN MMICs (monolithic…
New 785 nm DFB laser in TO-5 package
TOPTICA eagleyard presents a new chip generation with high performance and excellent signal-to-noise ratio:
At this year's virtual Photonics West, TOPTICA eagleyard presented the DFB-785 laser diode, a chip relaunch based on proven DFB technology. The DFB laser diode delivers 100 mW output power. It provides excellent…
Detection of anisotropy in the optical constants of quartz crystals for soft X-rays
In the PTB, methods for determining the optical constants of materials with synchrotron radiation have been established:
Quartz is an important substrate material for semiconductor structures and is used in a wide variety of industrial fields, for example as a substrate for various mirrors, nanostructures or other functional surfaces…
Solar cells: Losses made visible on the nanoscale
Researchers from HZB and University of Utah, USA, have shown how contact layers of silicon solar cells generate loss currents and what their physical origin is:
Solar cells made of crystalline silicon achieve peak efficiencies, especially in combination with selective contacts made of amorphous silicon (a-Si:H). However, their efficiency is limited by losses in these contact…
HZB team researches inexpensive catalysts for the production of hydrogen
With a new instrument at BESSY II, they show how light activates MoS₂ layers to become catalysts:
Thin films of molybdenum and sulfur belong to a class of materials that can be considered for use as photocatalysts. Inexpensive catalysts such as these are needed to produce hydrogen as a fuel using solar energy.…
Terahertz waves from electrons oscillating in liquid water
Researchers at Max-Born-Institute have observed radiation in the terahertz range which is initiated during the electron localization process:
Ionization of water molecules by light generates free electrons in liquid water. After generation, the so-called solvated electron is formed, a localized electron surrounded by a shell of water molecules. In the…
The data accelerator
Stefan Meister produces chips for faster internet in Adlershof:
The goddess of wind of the Yoruba people of Nigeria, Oya, is also responsible for transformation. “She tears away the old,” says Stefan Meister, who could indeed compare his work to hers. The doctor of physics has…
Experiment reveals new options for synchrotron light sources
SSMB source combines advantages of synchrotron light with the benefits of FEL pulses:
An international team has shown through a sensational experiment how diverse the possibilities for employing synchrotron light sources are. Accelerator experts from the Helmholtz-Zentrum Berlin (HZB), the German…
Spooky materialisation where light beams meet
New processes from Adlershof-based xolo GmbH are revolutionising 3D printing:
The young Adlershof-based xolo GmbH is launching a novel 3D printing process. Their xolography is based on molecules that are fused to form high-precision components under the influence of light beams of different…