Kinetics of photoconductivity and metastable electronic states in Pb1-xMnxTe(In) solid solutions

Boris A. Akimov; A. V. Albul; S. V. Ponomarev; Ludmila I. Ryabova

doi:10.1117/12.280431

26 August 1997 Kinetics of photoconductivity and metastable electronic states in Pb_1-xMn_xTe(In) solid solutions

Boris A. Akimov, A. V. Albul, S. V. Ponomarev, Ludmila I. Ryabova

Proceedings Volume 3182, Material Science and Material Properties for Infrared Optoelectronics; (1997) https://doi.org/10.1117/12.280431
Event: Material Science and Material Properties for Infrared Optoelectronics, 1996, Uzhgorod, Ukraine

Abstract

The most important features of Pb_1-xMn_xTe(In) solid solutions are the effect of Fermi level (FL) pinning and the existence of metastable electronic states resulting in the appearance of the relaxation processes of long duration. The increase of MnTe content in Pb_1-xMn_xTe(In) leads to the shift of pinned FL towards the conduction band edge E_c and metal-dielectric transition at X approximately 0.05. The kinetic processes under the radiation of Pb_1-xMn_xTe(In) single crystals have been investigated in the temperature range 4.2-35 K. It has been found that under the composition X variation the view of kinetic curves changes qualitatively. At X 1 of the impurity center together with the ground one E₂ is assumed. It is shown, that if the shift of E₁ and E₂ levels relatively to E_c is characterized by the linear dependence on X, the fast relaxation appears near the point when E₁ level crosses E_c and enters the energy gap.

Citation Download Citation

Boris A. Akimov, A. V. Albul, S. V. Ponomarev, and Ludmila I. Ryabova "Kinetics of photoconductivity and metastable electronic states in Pb_1-xMn_xTe(In) solid solutions", Proc. SPIE 3182, Material Science and Material Properties for Infrared Optoelectronics, (26 August 1997); https://doi.org/10.1117/12.280431

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