Study of the visible-excitation luminescence of NTA-TiO2(AB) with single-electron-trapped oxygen vacancies

被引:0
作者
L. Qian
Z.S. Jin
J.W. Zhang
Y.B. Huang
Z.J. Zhang
Z.L. Du
机构
[1] Henan University,Laboratory of Special Functional Materials
来源
Applied Physics A | 2005年 / 80卷
关键词
Oxygen; TiO2; Thin Film; Dehydration; Operating Procedure;
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摘要
A new kind of TiO2 (NTA-TiO2(AB)) with single-electron-trapped oxygen vacancies was prepared by the dehydration of nanotubed titanic acid under vacuum. Under visible-light excitation (λex=420 nm to 650 nm) NTA-TiO2(AB) showed a relatively intense emission, which red shifts with the increase of excitation wavelength. Analyzing the photoluminescence spectra, a sub-band induced by single-electron-trapped oxygen vacancies within Eg(NTA-TiO2(AB)) was obtained.
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页码:1801 / 1805
页数:4
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