Chemical separation accounts for 10 to 15 percent of the nation's energy consumption. That energy use has environmental costs, including tons of carbon dioxide released each year. Researchers are tackling the energy demands of separation by focusing on the underlying science. They are answering questions about how and why the targeted materials behave.
Scientists today announced that they have fabricated a thin-film solar module stack made up of perovskite and Copper Indium Gallium Selenide (CIGS) with a conversion efficiency of 17.8 percent. For the first time, this tandem module surpasses the highest efficiencies of separate perovskite and CIGS modules.
The joint research strategy is part of the action plan Nanotechnology 2020 of the Federal Government passed by the Federal Cabinet on 14 September 2016. At the heart of the joint research strategy are testing methods and concepts for the characterisation and assessment of health and environmental risks which must be adapted and tested for new materials.
A new technology makes it possible to test how complex molecules function by manipulating them systematically. Add to this a new electron microscopy technique that brings resolution down to the atomic level - and indeed scientists are now able to directly look at these machines.
Researchers have used layered materials to create an all-electrical quantum light emitting diodes (LED) with single-photon emission. These LEDs have potential as on-chip photon sources in quantum information applications.
The phenomenon, called flexoelectricity, arises from the redistribution of atoms and electrons in a material when it is bent. This redistribution of charges can be used to generate an electrical current. It was already known that insulating materials can be flexoelectric.
Scientists describe the path to developing a new class of artificial muscles made from highly twisted fibers of various materials, ranging from exotic carbon nanotubes to ordinary nylon thread and polymer fishing line.