Reliability of PbS Photoconductive Detector in Hydrothermal Environment

The PbS films have been prepared by CMD, and the surface morphology of which is showed, performance and experiment in hydrothermal environment(50±2℃, relative humidity≥95%) are specified. The performances of Pb S photoconductive detectors in hydrothermal environment are analysed, which have not been influenced in hydrothermal environment for 1 h. The Rd has increased by 50% in hydrothermal environment for 24 h, and the average increment of Pb S detector is in direct proportion to the time of hydrothermal environment after 2×24 h、3×24 h、4×24 h、5×24 h. Some samples have been failed after 7×24 h in hydrothermal environment.