- 光电子 guāngdiànzǐ photoelectronan electron that is emitted from a material as a result of absorbing light energy
- 光电池 guāngdiànchí photocellphotovoltaic cell; photoelectric battery; a semiconductor device that generates an electromotive force when exposed to light
- 光电管 guāngdiànguǎn phototubeA type of diode or electron tube that converts light energy into electrical signals; used in equipment for light measurement, counting, and automatic control systems.
- 光电二极管 guāngdiàn'èrjíguǎn photodiodephotodiode; a semiconductor device that converts light into an electrical current (sometimes also referred to as a photorectifier)
- 光电导 guāngdiàndǎo photoconductivity / photoconductanceThe phenomenon where a semiconductor material's electrical conductivity increases when it is exposed to light; also written as [[光导|光導|guang1 dao3]]
- 观光电梯 guānguāngdiàntī sightseeing elevatorAn elevator with one or more transparent walls that allows passengers to view the surrounding scenery; commonly installed in high-rise hotels, malls, or office buildings.
- 光电元件 guāngdiànyuánjiàn photoelectric componentAn electronic device or unit that converts light into electrical signals
- 光电效应 guāngdiànxiàoyìng photoelectric effectThe phenomenon where a material emits electrons after absorbing energy from light or other electromagnetic radiation
- 光电现象 guāngdiànxiànxiàng photoelectric phenomenonemission of electrons from a material when it is exposed to electromagnetic radiation
- 光电过程 guāngdiànguòchéng photoelectric processthe process of electrical changes in a material resulting from the absorption of light or other electromagnetic radiation