Effect of hydrogenation on ZnO luminescence

被引：140

作者：

Sekiguchi, T ^{[1
]}

Ohashi, N ^{[1
]}

Terada, Y ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,FAC ENGN,DEPT INORGAN MAT,MEGURO KU,TOKYO 152,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1997年 / 36卷 / 3A期

关键词：

ZnO; cathodoluminescence; CL; green emission; excitonic luminescence; hydrogen passivation; hydrogenation; deep levels; luminescence;

D O I：

10.1143/JJAP.36.L289

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of hydrogenation on the luminescence property of ZnO crystal was investigated by means of cathodoluminescence (CL). It was found that hydrogen plasma treatment strongly passivates the seen emission and enhances the band edge luminescence. The band edge luminescence of ZnO crystals in the as-grown state does not show any significant temperature dependence. However: that of hydrogenated ZnO crystals shows strong temperature dependence and the intensity increases significantly at low temperatures. At 30 K, the number of luminescent photons exceeds several tenths of generated electron-hole pairs.

引用

页码：L289 / L291

页数：3

共 10 条

[1] Luminescence and nonradiative deactivation of excited states involving oxygen defect centers in polycrystalline ZnO [J].