摘要: The basic physics of semiconductors is reviewed with a focus on the optical and electronic properties relevant for energy applications. interactions among photons, electrons, atoms in will be presented correlation photoelectric photovoltaic (PV) effects. Energy device structures discussed applications based materials their combinations are presented. In particular, p–n junctions analysed as precursors to PV devices. Other also discussed, including, lasers, particle detectors, LEDs, super lattices, etc. Finally, description given, focusing different forms this class materials. standard semiconductor materials, like silicon, compared new wave semiconductors, which includes large band-gap semiconductor, nanostructured organic semiconductors.