Sample preparation and photoluminescence of ZnO particles embedded in thin alkali halide crystals

被引：20

作者：

Harada, Y ^{[1
]}

Kondo, H

Ichimura, N

Hashimoto, S

机构：

[1] Osaka Inst Technol, Asahi Ku, Osaka 5358585, Japan

[2] Ehime Univ, Fac Sci, Dept Phys, Matsuyama, Ehime 7908577, Japan

[3] Osaka Univ, Grad Sch Sci, Dept Phys, Toyonaka, Osaka 5600043, Japan

[4] Kyoto Univ Educ, Dept Phys, Fushimi Ku, Kyoto 6128522, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1999年 / 38卷 / 11B期

关键词：

ZnO particle; alkali halide crystal; photoluminescence; free exciton; bound exciton;

D O I：

10.1143/JJAP.38.L1318

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have prepared samples of ZnO particles embedded in thin alkali halide crystals by a melt growth method and have measured photoluminescence spectra at various temperatures. In the spectra measured at 8.5 K, free exciton (FE) and bound exciton (BE) emission lines are clearly recognized, while the well-known green band is hardly observed. The FE line appears at temperatures between 8.5 K and 300 K. The widths of both lines are very sharp and almost equal to that of ZnO epitaxial layers grown by a molecular beam epitaxy method. These results strongly suggest that high-quality ZnO particles can be well embedded in thin alkali halide crystals.

引用

页码：L1318 / L1320

页数：3

共 14 条

[1] Room temperature excitonic stimulated emission from zinc oxide epilayers grown by plasma-assisted MBE [J].