Title

Influence of oxygen treatment on transport properties of PbTe:In polycrystalline films

Authors

Authors

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

Comments

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Abbreviated Journal Title

Physica B

Keywords

Lead telluride films; Oxygen treatment; Photosensitivity; PBS-TYPE FILMS; PHYSICAL-PROPERTIES; CONDUCTIVITY; OXIDATION; DIFFUSION; LAYERS; Physics, Condensed Matter

Abstract

In this work, the oxygen treatment of 1 mu m thick n-type PbTe:In films was studied. Two main processes induced during the thermal treatment in oxygen atmosphere were identified. The inversion of the type of electrical conductivity in PbTe:In films from n- to p-type was observed after the thermal treatment in oxygen (T(a) = 400 degrees C). This effect is related to indium segregation at the film surface. The photoconductivity demonstrated in PbTe:In films after oxygen treatment is due to oxygen diffusion along the grain boundaries and the creation of potential relief, which separates electron-hole pairs at the boundaries under light illumination. (C) 2010 Elsevier B.V. All rights reserved.

Journal Title

Physica B-Condensed Matter

Volume

405

Issue/Number

10

Publication Date

1-1-2010

Document Type

Article

DOI Link

http://dx.doi.org/10.1016/j.physb.2010.02.048

Language

English

First Page

2380

Last Page

2384

WOS Identifier

WOS:000277776200005

ISSN

0921-4526

Recommended Citation

"Influence of oxygen treatment on transport properties of PbTe:In polycrystalline films" (2010). Faculty Bibliography 2010s. 83.
https://stars.library.ucf.edu/facultybib2010/83