Products of Optoelectronic Devices

The optoelectronic devices refer to those functional devices, whose operation principles are based on photon-electron or electron-photon conversion effects, e.g., photovoltaic, photoconductive, and photoelectron emission effects. According to the working mechanism and applications, these optoelectronic devices are mainly classified into three categories. The first is photodetector or photoelectric receiver. The second is the electroluminescent device that realizes the conversion of electrical signal to optical signal. The third is the solar cells that convert solar energy into electricity and storage. The basic structures and working principles of these devices are briefly described in this chapter.