Optical absorption of ReS2 and ReSe2 single crystals

C. H. Ho; P. C. Liao; Y. S. Huang; T. R. Yang; K. K. Tiong

doi:10.1063/1.365357

Optical absorption of ReS₂ and ReSe₂ single crystals

C. H. Ho, P. C. Liao, Y. S. Huang^*, T. R. Yang, K. K. Tiong

^*Corresponding author for this work

Department of Physics

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

61 Citations (Scopus)

Abstract

The optical absorption of synthetic ReS₂ and ReSe₂ single crystals is reported over a temperature range from 25 to 300 K. Analysis reveals that the absorption edges of ReS₂ and ReSe₂ are indirect allowed transitons. The indirect band gaps at various temperatures are determined and their temperature dependence is analyzed by the Varshni equation [Physica 34, 149(1967)] and an empirical expression proposed by O'Donnel and Chen [Appl. Phys. Lett. 58, 2924 (1991)]. The parameters that described temperature dependence of energy gaps of these two materials are evaluated and discussed.

Original language	English
Pages (from-to)	6380-6383
Number of pages	4
Journal	Journal of Applied Physics
Volume	81
Issue number	9
DOIs	https://doi.org/10.1063/1.365357
Publication status	Published - 1997 May 1

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.365357

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title = "Optical absorption of ReS2 and ReSe2 single crystals",

abstract = "The optical absorption of synthetic ReS2 and ReSe2 single crystals is reported over a temperature range from 25 to 300 K. Analysis reveals that the absorption edges of ReS2 and ReSe2 are indirect allowed transitons. The indirect band gaps at various temperatures are determined and their temperature dependence is analyzed by the Varshni equation [Physica 34, 149(1967)] and an empirical expression proposed by O'Donnel and Chen [Appl. Phys. Lett. 58, 2924 (1991)]. The parameters that described temperature dependence of energy gaps of these two materials are evaluated and discussed.",

author = "Ho, {C. H.} and Liao, {P. C.} and Huang, {Y. S.} and Yang, {T. R.} and Tiong, {K. K.}",

year = "1997",

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TY - JOUR

T1 - Optical absorption of ReS2 and ReSe2 single crystals

AU - Ho, C. H.

AU - Liao, P. C.

AU - Huang, Y. S.

AU - Yang, T. R.

AU - Tiong, K. K.

PY - 1997/5/1

Y1 - 1997/5/1

N2 - The optical absorption of synthetic ReS2 and ReSe2 single crystals is reported over a temperature range from 25 to 300 K. Analysis reveals that the absorption edges of ReS2 and ReSe2 are indirect allowed transitons. The indirect band gaps at various temperatures are determined and their temperature dependence is analyzed by the Varshni equation [Physica 34, 149(1967)] and an empirical expression proposed by O'Donnel and Chen [Appl. Phys. Lett. 58, 2924 (1991)]. The parameters that described temperature dependence of energy gaps of these two materials are evaluated and discussed.

AB - The optical absorption of synthetic ReS2 and ReSe2 single crystals is reported over a temperature range from 25 to 300 K. Analysis reveals that the absorption edges of ReS2 and ReSe2 are indirect allowed transitons. The indirect band gaps at various temperatures are determined and their temperature dependence is analyzed by the Varshni equation [Physica 34, 149(1967)] and an empirical expression proposed by O'Donnel and Chen [Appl. Phys. Lett. 58, 2924 (1991)]. The parameters that described temperature dependence of energy gaps of these two materials are evaluated and discussed.

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DO - 10.1063/1.365357

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

ER -

Optical absorption of ReS₂ and ReSe₂ single crystals

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