Articles tagged with Valence Bands
Scientists have found novel methods to enhance the conductivity of organic semiconductors by emptying their valence bands, leading to unprecedented levels of doping. This breakthrough could lead to higher-power thermoelectric devices that convert waste heat into electricity.
Researchers propose a novel pathway to realizing hot carrier solar cells, which can exceed the typical efficiency limit on solar cells. The approach involves isolating hot carriers within higher energy valleys in semiconductors, reducing energy loss to heat.
The study reveals that manipulating the transition dipole moment of excitons in quantum dots can suppress Auger recombination. By combining with external structures, researchers achieved a new way to control the nonradiative process, potentially leading to improved efficiency of QD-based devices.
Researchers at Berkeley Lab and Notre Dame have determined the origin of charge-carriers in gallium manganese arsenide, a material promising for spintronic devices. The study reveals that holes controlling Curie temperature are located in an impurity band, opening possibilities to expand its width and boost performance.