This course covers semiconductor physics knowledge such as semiconductor energy band theory, semiconductor carrier statistics, semiconductor carrier transport, unbalanced carriers, p-n junction, metal-semiconductor contact, semiconductor surface and MIS structure, etc., and grasp the electron movement in semiconductors Laws and characteristics as well as the basic electrical properties of semiconductors, and then learn the application of new semiconductor energy devices (optoelectronic devices, photoelectrochemical devices), and prepare for the study of renewable energy conversion.