A Novel Photoconductive Detector

Abstract

A novel photoconductive detector belongs to the field of electronic information materials and components. The photoconductive detector consists of an active layer and a patterned electrode layer from bottom to top, wherein the patterned electrode layer includes a first electrode, a second electrode, a third electrode, and a fourth electrode. The relative position of the second electrode, the third electrode and the fourth electrode pattern is an arbitrary quadrilateral structure. The first electrode, the second electrode, the third electrode and the fourth electrode are arranged clockwise or counterclockwise. When working, the A constant current power supply is connected between the first electrode and the second electrode, and a voltage value is tested by a voltage measuring device between the third electrode and the fourth electrode, and the optical signal is identified through the change of the voltage value. The photoconductive detector of the present invention has lower requirements on the size of the electrode structure, and its preparation does not require photolithography technology, and the preparation process is simpler, which helps to improve the yield of products and reduce production costs, and the aperture ratio of the device is greatly improved.

Description

technical field [0001] The invention belongs to the field of electronic information materials and components, and in particular relates to a novel photoconductive detector, which can be used for ultraviolet or infrared detection. Background technique [0002] In recent years, photoelectric detection technology has developed rapidly and is widely used, mainly including infrared detection technology, ultraviolet detection technology, laser detection technology and photoelectric comprehensive detection technology. Among them, using infrared detection technology, infrared night vision devices and thermal imagers can be prepared for long-distance investigation, surveillance, tracking and detection of camouflage, etc.; ultraviolet detection technology can be used for combustion process detection, ultraviolet leakage inspection, fire prevention and missile detection. Laser detection technology is generally used in laser range finders, laser radars, laser target indicators, etc.; ph...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the difficulty of preparation, low product yield, high process cost, difficulty in mass production and low device aperture ratio of traditional photoconductive detectors due to the use of interdigitated electrode structures. Shortcomings, a new type of photoconductive detector is proposed, which has a simple structure, a high aperture ratio, and is easier to realize the miniaturization and integration of the device, and can avoid the use of photolithography technology, which can greatly reduce the difficulty and cost of the manufacturing process

Images