Time-resolved study of photoluminescence in anatase TiO2

被引：44

作者：

Watanabe, M ^{[1
]}

Sasaki, S

Hayashi, T

机构：

[1] Kyoto Univ, Fac Integrated Human Studies, Dept Fundmental Sci, Kyoto 6068501, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

anatase; TiO2; self-trapped exciton; time-resolved spectroscopy;

D O I：

10.1016/S0022-2313(99)00525-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The luminescence of self-trapped excitons (STE) in anatase phase of TiO2 has been studied by time-resolved spectroscopy. It is found that the decay curves of the luminescence band consist of two components obeying exponential and power-law decay. Both components have the same spectral shape but the intensity of the power-law part is suppressed compared to that of the exponential part with increasing the excitation density. Thc se facts suggest that two different processes exist for the formation of STE. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1234 / 1236

页数：3

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