Self-driven caesium-lead-chlorine detector for ultraviolet imaging and preparation method of self-driven caesium-lead-chlorine detector

• Main Authors: ZHANG LIANG, MA CHAO, HU QI, YU TAO, MA LE, LIU YANG, CAO LIANG, HAN TING, HE QIAN, LUO LONG, ZHAO YUNLONG, JIA MINGHUI, LI YAN, QI PENGWEN, GE SHANXING
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; COLORIMETRY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; SEMICONDUCTOR DEVICES; TESTING

The invention belongs to the technical field of semiconductor photoelectric detectors, and provides a self-driven cesium-lead-chlorine detector for ultraviolet imaging and a preparation method thereof, and the scheme is that the self-driven cesium-lead-chlorine detector comprises a first electrode, a second electrode, a transmission layer and a light absorption layer which are vertically distributed; energy bands of the transmission layer and the light absorption layer are matched to form a built-in electric field step, the light absorption layer is used for absorbing photon energy, forming an electron-hole pair, separating under the driving of the built-in electric field step and generating photo-generated current through the transmission layer, and the transmission layer is used for transmitting the photo-generated current to the first electrode or the second electrode; and the first electrode and the second electrode are used for leading generated photo-generated current to an external acquisition circuit.