Title

Electrical conductivity and minority carrier diffusion in thermally oxidized PbTe thin films

Authors

Authors

E. Shufer; Z. Dashevsky; V. Kasiyan; E. Flitsiyan; L. Chernyak;K. Gartsman

Comments

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Abbreviated Journal Title

Physica B

Keywords

Lead telluride film; Thermal oxidation; Transport properties; EBIC; effect; PBS-TYPE FILMS; PHYSICAL-PROPERTIES; LENGTH; Physics, Condensed Matter

Abstract

Thermally oxidized 0.1 and 1 mu m thick n-type PbTe:In films were studied in this work. Two main processes induced during the thermal treatment in oxygen atmosphere were identified. These are the formation of an oxide phase on the surface and generation of acceptor states of oxygen along grain boundaries inside a film. The latter process causes inversion of the type of electrical conductivity in PbTe from n to p. Electron beam-induced current (EBIC) measurements of minority electron diffusion length in oxidized 0.1 mu m, thick PbTe:In film showed diffusion length increase with increasing temperature similar to the wide band gap semiconductors. (C) 2009 Elsevier B.V. All rights reserved.

Journal Title

Physica B-Condensed Matter

Volume

405

Issue/Number

4

Publication Date

1-1-2010

Document Type

Review

Language

English

First Page

1058

Last Page

1061

WOS Identifier

WOS:000274607700006

ISSN

0921-4526

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