PHOTOLUMINESCENCE STUDIES IN CUALS2 CRYSTALS

被引：36

作者：

SHIRAKATA, S ^{[1
]}

AKSENOV, I ^{[1
]}

SATO, K ^{[1
]}

ISOMURA, S ^{[1
]}

机构：

[1] TOKYO UNIV AGR & TECHNOL, FAC TECHNOL, KOGANEI, TOKYO 184, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 8A期

关键词：

SINGLE CRYSTALS OF CUALS2; CHALCOPYRITE SEMICONDUCTOR; PHOTOLUMINESCENCE; EXCITON LUMINESCENCE;

D O I：

10.1143/JJAP.31.L1071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) measurements have been carried out at low temperature (77 and 10 K) on CuAlS2 crystals grown by the chemical vapor transport method. Seven sharp PL lines have been observed near the band edge. Based on the photoreflectance measurements, the PL line at 3.550 eV has been assigned to a free exciton emission. The lines at 3.540, 3.532, 3.500 and 3.475 eV are tentatively assigned to the bound excitons, and they are discussed in terms of the crystal composition and the annealing conditions. This study also refers to the PL lines and peaks at about 2.9 eV.

引用

页码：L1071 / L1074

页数：4

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