A quantum approach to photodarkening in chalcogenides

Jai Singh; I OH

A quantum approach to photodarkening in chalcogenides

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Abstract

We present a microscopic quantum mechanical theory to calculate the reduction in the band gap energy due to illumination in chalcogenides. It is shown that photodarkening occurs due to the strong-carrier lattice interaction leading to pairing of the excited charge carriers. Results demonstrate similar behavior as observed in some experiments. � 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1582-1585
Number of pages	4
Journal	Journal of Non-Crystalline Solids
Volume	351
Publication status	Published - 2005

Cite this

@article{cb96325aab8646f184bb2ec71ac8f375,

title = "A quantum approach to photodarkening in chalcogenides",

abstract = "We present a microscopic quantum mechanical theory to calculate the reduction in the band gap energy due to illumination in chalcogenides. It is shown that photodarkening occurs due to the strong-carrier lattice interaction leading to pairing of the excited charge carriers. Results demonstrate similar behavior as observed in some experiments. � 2005 Elsevier B.V. All rights reserved.",

keywords = "Charge carriers, Crystalline materials, Eigenvalues and eigenfunctions, Electrons, Energy gap, Lattice vibrations, Lighting, Phonons, Photochromism, Band gap energy, Chalcogenides, Excited electrons, Volume expansion (VE), Quantum theory",

author = "Jai Singh and I OH",

year = "2005",

language = "English",

volume = "351",

pages = "1582--1585",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

}

TY - JOUR

T1 - A quantum approach to photodarkening in chalcogenides

AU - Singh, Jai

AU - OH, I

PY - 2005

Y1 - 2005

N2 - We present a microscopic quantum mechanical theory to calculate the reduction in the band gap energy due to illumination in chalcogenides. It is shown that photodarkening occurs due to the strong-carrier lattice interaction leading to pairing of the excited charge carriers. Results demonstrate similar behavior as observed in some experiments. � 2005 Elsevier B.V. All rights reserved.

AB - We present a microscopic quantum mechanical theory to calculate the reduction in the band gap energy due to illumination in chalcogenides. It is shown that photodarkening occurs due to the strong-carrier lattice interaction leading to pairing of the excited charge carriers. Results demonstrate similar behavior as observed in some experiments. � 2005 Elsevier B.V. All rights reserved.

KW - Charge carriers

KW - Crystalline materials

KW - Eigenvalues and eigenfunctions

KW - Electrons

KW - Energy gap

KW - Lattice vibrations

KW - Lighting

KW - Phonons

KW - Photochromism

KW - Band gap energy

KW - Chalcogenides

KW - Excited electrons

KW - Volume expansion (VE)

KW - Quantum theory

M3 - Article

VL - 351

SP - 1582

EP - 1585

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

ER -

A quantum approach to photodarkening in chalcogenides

Abstract

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