Optical absorption of ReS2 and ReSe2 single crystals

C. H. Ho, P. C. Liao, Y. S. Huang*, Tzuen-Rong Yang, K. K. Tiong

*此作品的通信作者

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
81
發行號9
DOIs
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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