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

^*此作品的通信作者

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

55 引文斯高帕斯（Scopus）

摘要

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.

原文	英語
頁（從 - 到）	6380-6383
頁數	4
期刊	Journal of Applied Physics
卷	81
發行號	9
DOIs	https://doi.org/10.1063/1.365357
出版狀態	已發佈 - 1997 五月 1

ASJC Scopus subject areas

物理與天文學 (全部)

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10.1063/1.365357

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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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JF - Journal of Applied Physics

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ER -

Optical absorption of ReS2 and ReSe2 single crystals

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Optical absorption of ReS₂ and ReSe₂ single crystals