Temperature dependence of infrared photoresponse from lead sulfide film grown by chemical bath deposition
Zeyuan Shi,
Haozhou Li,
Dong Yang
et al.
Abstract:Due to the lower Auger recombination coefficient of lead salts, the study of room temperature infrared detectors based on lead salt is reemerges as a hot research topic. In this paper, we prepared polycrystalline lead sulfide (PbS) films using chemical bath deposition and fabricated a photovoltage infrared detector with Si. Different from normal PbS photodetectors, which usually show positive photoconductivity, our device demonstrated both positive and negative photoconductivity under 1550 nm laser illuminatio… Show more
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