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

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

doi:10.1016/j.physb.2010.02.048

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

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

Department of Materials Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

In this work, the oxygen treatment of 1 μm 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 °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.

Original language	English
Pages (from-to)	2380-2384
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	405
Issue number	10
DOIs	https://doi.org/10.1016/j.physb.2010.02.048
State	Published - 15 May 2010

Keywords

Lead telluride films
Oxygen treatment
Photosensitivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2010.02.048

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title = "Influence of oxygen treatment on transport properties of PbTe:In polycrystalline films",

abstract = "In this work, the oxygen treatment of 1 μm 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 (Ta=400 °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.",

keywords = "Lead telluride films, Oxygen treatment, Photosensitivity",

author = "Z. Dashevsky and E. Shufer and V. Kasiyan and E. Flitsiyan and L. Chernyak",

note = "Funding Information: The Support of the United States-Israel Binational Science Foundation (BSF) for the present study under Grant no. 2008328 is gratefully acknowledged.",

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doi = "10.1016/j.physb.2010.02.048",

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T1 - Influence of oxygen treatment on transport properties of PbTe:In polycrystalline films

AU - Dashevsky, Z.

AU - Shufer, E.

AU - Kasiyan, V.

AU - Flitsiyan, E.

AU - Chernyak, L.

N1 - Funding Information: The Support of the United States-Israel Binational Science Foundation (BSF) for the present study under Grant no. 2008328 is gratefully acknowledged.

PY - 2010/5/15

Y1 - 2010/5/15

N2 - In this work, the oxygen treatment of 1 μm 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 (Ta=400 °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.

AB - In this work, the oxygen treatment of 1 μm 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 (Ta=400 °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.

KW - Lead telluride films

KW - Oxygen treatment

KW - Photosensitivity

UR - https://www.scopus.com/pages/publications/77950594510

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DO - 10.1016/j.physb.2010.02.048

M3 - Article

AN - SCOPUS:77950594510

SN - 0921-4526

VL - 405

SP - 2380

EP - 2384

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 10

ER -

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

Abstract

Keywords

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