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perovskite silicon tandem solar cells

New Records for Perovskite Silicon Tandem Solar Cells Through Improved Light...

Using microstructured layers, an HZB team was able to increase the efficiency of perovskite silicon tandem solar cells to currently 25.5 percent, the highest...
graphene

Graphene on the Way to Superconductivity

Pure carbon is made up of materials as diverse as diamond, graphite or graphene. In graphene, the carbon atoms form a two-dimensional net with hexagonal...
memory chip

Data Storage of the Future – Extremely Small Magnetic Nanostructures with...

Novel concepts of magnetic data storage aim to send very small magnetic bits back and forth in a memory chip, store them tightly packed...
blue phosphorus

Blue Phosphorus – Mapped and Measured for the First Time

Until recently, the existence of "blue" phosphorus was pure theory: Now an HZB team was able to examine samples of blue phosphorus at BESSY...
silicon solar cells

HZB Researchers Are Used to Boost the Efficiency of Silicon Solar...

The efficiency of a solar cell is one of its most important parameters. It indicates what percentage of the solar energy radiated into the...
Thin-film solar cells

Patented Nanostructure for Solar Cells: Rough Optics, Smooth Surface

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...
Nanogels

Nanotechnology vs. Viruses

An international interdisciplinary team of virologists and biochemists that includes scientists at Freie Universität has developed low-cost and “cell-friendly” nanogels that can efficiently prevent...
Hybrid Devices

Printing Solar Cells and Organic LEDs

Humboldt-Universität zu Berlin and Helmholtz-Zentrum Berlin form a joint lab and research group “Generative production processes for hybrid components”.Solar cells, LEDs and detectors made...
Nanoscale Heat Transport

Future Information Technologies: Nanoscale Heat Transport Under the Microscope

Metals usually conduct heat extremely well. Local heating is distributed almost instantaneously through their free electrons. By contrast, insulating materials without free electrons conduct...
plasmonic nanodevices

Concepts for New Switchable Plasmonic Nanodevices

Plasmonic waveguides open the possibility for the development of dramatically reduced optical components and provide a promising route to future integrated circuit technologies for...
perovskite solar cell

Insight into Loss Processes in Perovskite Solar Cells Enables Improved Efficiency

In perovskite solar cells charge carriers are lost mainly by recombination at defects at the interfaces. However, recombination on defects inside the perovskite layer does...
Electronic processes

Electronic Processes Observed During Catalysis with Novel X-Ray Spectroscopy Method

An international team has achieved a breakthrough at BESSY II. For the first time, they were able to study electronic processes on a transition metal...
Magnetic solids

Microscopic Insight into Processes When Magnets Suddenly Heat Up

Magnetic solids can demagnetize upon heating. Despite decades of research, it has so far been unclear how this process works in detail. Now, for...
laser system

Designing Laser Systems Made Easy

The Adlershof-based BeamXpert GmbH is developing software for real-time simulation of laser propagation in optical systems. It supports developers designing laser systems. Its two...
solar water-splitting

New World Record for Direct Solar Water-Splitting Efficiency

Hydrogen will play a central role as a storage medium in sustainable energy systems. An international team of researchers has now succeeded in raising...
Neutron tomography

Neutron Tomography: Insights into the Interior of Teeth, Root Balls, Batteries,...

A team of researchers at Helmholtz-Zentrum Berlin (HZB) and European Spallation Source (ESS) has now published a comprehensive overview of neutron-based imaging processes in...
heart valves

Belly Helps Cultured Heart Valve to Finally Find Its Shape

For over fifteen years, scientists have been looking for the golden formula to grow heart valves using body cells. Now a method finally seems...
laser systems

Frequency-Stable Laser Systems for Space

For the first time, a frequency reference based on molecular iodine in space was successfully demonstrated! What sounds a bit like science fiction is an...
magnets with lasers

Writing and Deleting Magnets with Lasers

Researchers of the HZDR, an independent German research laboratory, studied an alloy of iron and aluminum. It is interesting as a prototype material because...
Magnetotactic bacteria

Bacteria with a Magnetism Sense

Bacteria exist in many shapes and with very different talents. Magnetotactic bacteria can even sense the earth’s magnetic field by making use of magnetic...