Reversible vs irreversible photodarkening in a-Se: The kinetics study

A. Reznik; S. D. Baranovskii; M. Klebanov; V. Lyubin; O. Rubel; J. A. Rowlands

doi:10.1007/s10854-007-9461-8

Reversible vs irreversible photodarkening in a-Se: The kinetics study

A. Reznik, S. D. Baranovskii, M. Klebanov, V. Lyubin, O. Rubel, J. A. Rowlands

Department of Physics

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

11 Scopus citations

Abstract

The kinetics of photodarkening (PD) in amorphous selenium has been studied experimentally at different intensities of optical excitation. Comparison between the experimental results and a proposed phenomenological model reveals the characteristic rates for conversion of structural units into reversible and irreversible states. Our results show that the relaxation of the irreversible PD states occurs over a barrier of about 0.9 eV and is described by much longer characteristic times (more that one order of magnitude) than that for the reversible states.

Original language	English
Pages (from-to)	S111-S115
Journal	Journal of Materials Science: Materials in Electronics
Volume	20
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1007/s10854-007-9461-8
State	Published - 1 Jan 2009

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1007/s10854-007-9461-8

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abstract = "The kinetics of photodarkening (PD) in amorphous selenium has been studied experimentally at different intensities of optical excitation. Comparison between the experimental results and a proposed phenomenological model reveals the characteristic rates for conversion of structural units into reversible and irreversible states. Our results show that the relaxation of the irreversible PD states occurs over a barrier of about 0.9 eV and is described by much longer characteristic times (more that one order of magnitude) than that for the reversible states.",

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note = "Funding Information: Aknowledgements Financial support of the Deutsche Forschungs-gemeinschaft and that of the Fonds der Chemischen Industrie is gratefully acknowledged.",

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T2 - The kinetics study

AU - Reznik, A.

AU - Baranovskii, S. D.

AU - Klebanov, M.

AU - Lyubin, V.

AU - Rubel, O.

AU - Rowlands, J. A.

N1 - Funding Information: Aknowledgements Financial support of the Deutsche Forschungs-gemeinschaft and that of the Fonds der Chemischen Industrie is gratefully acknowledged.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The kinetics of photodarkening (PD) in amorphous selenium has been studied experimentally at different intensities of optical excitation. Comparison between the experimental results and a proposed phenomenological model reveals the characteristic rates for conversion of structural units into reversible and irreversible states. Our results show that the relaxation of the irreversible PD states occurs over a barrier of about 0.9 eV and is described by much longer characteristic times (more that one order of magnitude) than that for the reversible states.

AB - The kinetics of photodarkening (PD) in amorphous selenium has been studied experimentally at different intensities of optical excitation. Comparison between the experimental results and a proposed phenomenological model reveals the characteristic rates for conversion of structural units into reversible and irreversible states. Our results show that the relaxation of the irreversible PD states occurs over a barrier of about 0.9 eV and is described by much longer characteristic times (more that one order of magnitude) than that for the reversible states.

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DO - 10.1007/s10854-007-9461-8

M3 - Article

AN - SCOPUS:71149105147

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JF - Journal of Materials Science: Materials in Electronics

IS - SUPPL. 1

ER -

Reversible vs irreversible photodarkening in a-Se: The kinetics study

Abstract

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