PHOTOREFLECTANCE STUDIES IN CUGAS2 SINGLE-CRYSTALS

被引：21

作者：

SHIRAKATA, S

ISOMURA, S

机构：

[1] Faculty of Engineering, Ehime University, Matsuyama, Ehime 790, Bunkyo-cho

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 11期

关键词：

D O I：

10.1063/1.349783

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoreflectance (PR) measurements have been performed near the fundamental absorption edge of CuGaS2 single crystals grown by an iodine-transport method. The PR spectra at room temperature are analyzed as the superposition of excition and band-to-band transition. The exciton transition energies at 290 and 77 K are obtained to be 2.463 and 2.503 eV, respectively. The quality of CuGaS2 crystals grown with different amounts of iodine is characterized with respect to energies and broadening of the PR spectra.

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页码：7051 / 7054

页数：4

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