Thermally induced currents and instabilities of photoresponse in PbTe(In)-based films

Boris A. Akimov; Vladislav A. Bogoyavlenskiy; Ludmila I. Ryabova; Vyacheslav N. Vasil'kov

doi:10.1117/12.368357

4 November 1999 Thermally induced currents and instabilities of photoresponse in PbTe(In)-based films

Boris A. Akimov, Vladislav A. Bogoyavlenskiy, Ludmila I. Ryabova, Vyacheslav N. Vasil'kov

Proceedings Volume 3890, Fourth International Conference on Material Science and Material Properties for Infrared Optoelectronics; (1999) https://doi.org/10.1117/12.368357
Event: Material Science and Material Properties for Infrared Optoelectronics, 1998, Kiev, Ukraine

Abstract

The thermally induced currents (TIC) and instabilities of photoresponse in Pb_1-x-ySn_xGe_yTe(IN) films on BaF₂ substrates have been investigated at temperatures 4.2 < T < 30 K. The temperature T_M corresponding to maximum values of single TIC peaks appears to be extremely low varying from 6 K up to 14 K. The combined effect of lighting and slight heating of the sample from 4.2 K up to approximately 6 K results in photoresponse instabilities depending on the experimental regime. The results are interpreted in terms of thermal excitation of charge carriers from metastable impurity level.

Citation Download Citation

Boris A. Akimov, Vladislav A. Bogoyavlenskiy, Ludmila I. Ryabova, and Vyacheslav N. Vasil'kov "Thermally induced currents and instabilities of photoresponse in PbTe(In)-based films", Proc. SPIE 3890, Fourth International Conference on Material Science and Material Properties for Infrared Optoelectronics, (4 November 1999); https://doi.org/10.1117/12.368357

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