Explanation

An IV-VI family comparison platform semiconductor materials, rock salt structure, 0.37eV band gap, direct transition energy band, significant infrared photoelectric effect, response wavelength 1-3 μ m. It is phase with the infrared radiation energy of most military targets. single crystal is prepared by directional crystallization. The film is prepared by vacuum sublimation method (evaporation of lead sulfide powder to the substrate in vacuum) or chemical deposition method (deposition of the film on the substrate in lead salt, thiourea and sodium hydroxide (or hydrazine) solution), mainly used in infrared detectors, infrared photoresistors, etc.

Classification