Electronic state characterization of TiO2 ultrafine particles by luminescence spectroscopy

被引：81

作者：

Zhu, YC ^{[1
]}

Ding, CX

Ma, GH

Du, ZL

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

[2] Henan Univ, Solid State Phys Lab, Kaifeng 475001, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1998年 / 139卷 / 01期

关键词：

D O I：

10.1006/jssc.1998.7816

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The electronic states of TiO2 ultrafine particles (UFP) are characterized by photoluminescence spectra and diffuse reflection spectra. The results obtained indicate that the surface structure, i.e., TiOH groups, TiOC2H5 groups, and the defect state, plays an important role in the electronic states of the TiO2 UFP. Moreover, free exciton emission is observed at room temperature. This emission is attributed to the quantum confinement and the dielectric confinement effects on the TiO2 UFP. (C) 1998 Academic Press.

引用

页码：124 / 127

页数：4

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