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High-Performance Lead Telluride-Based Photodetectors

Published online by Cambridge University Press:  15 February 2011

Boris A. Akimov  and
Dmitriy R. Khokhlov
Boris A. Akimov
Affiliation:
Physics Department, Moscow State University, Moscow 119899, Russia
Dmitriy R. Khokhlov
Affiliation:
Physics Department, Moscow State University, Moscow 119899, Russia
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Abstract

We present the new class of the far infrared photodetectors based on the lead-tin tellurides doped with the group III impurities. The persistent photoconductivity effect appearing in these materials provides an internal signal integration resulting in a considerable increase in the signal-to-noise ratio. The techniques of the photomemory quenching are discussed. In some regime of quenching the effect of giant quantum efficiency stimulation has been observed. The possibility of generation of the photoinduced spatially nonequilibrium states provides the physical evidence for the construction of an integrating “continuous” focal-plane array based on Pb1−xSnxTe(In).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 299: Symposium C2 – Infrared Detectors--Materials, Processing, and Devices , 1994 , 329
Copyright
Copyright © Materials Research Society 1994

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