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

    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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