Organic semiconductors are prized for light emitting diodes (LEDs), field effect transistors (FETs) and photovoltaic cells. As they can be printed from solution, they provide a highly scalable, cost-effective alternative to silicon-based devices. Uneven performances, however, have been a persistent problem. That’s now changed.
SWAPPS – Standing Wave Ambient Pressure Photoelectron Spectroscopy – is a new X-ray technique developed at Berkeley Lab’s Advanced Light Source that provides sub-nanometer resolution of every chemical element to be found at heterogeneous interfaces, such as those in batteries, fuel cells and other devices.
Berkeley Lab researchers have developed a new technique called two-dimensional electronic-vibrational spectroscopy that can be used to study the interplay between electrons and atomic nuclei during a photochemical reaction. Photochemical reactions are critical to a wide range of natural and technological phenomena, including photosynthesis, vision, nanomaterials and solar energy.
It’s now more or less official: element 117 will have a seat at the periodic table. Earlier this month an international team of scientists that included researchers from Lawrence Berkeley National Lab’s Nuclear Science Division found two atoms of superheavy element 117. The experiment, conducted at a particle accelerator at the GSI Helmholtz Center for
Probing dopant distribution: Finding by Berkeley Lab Researchers at the Molecular Foundry Opens the Door to Better Doping of Semiconductor Nanocrystals
Berkeley Lab researchers at the Molecular Foundry have shown that when doping a semiconductor to alter its electrical properties, equally important as the amount of dopant is how the dopant is distributed on the surface and throughout the material.