Cathodoluminescence characterization of ZnO:Te microstructures obtained with ZnTe and TeO2 doping

被引：16

作者：

Iribarren, A. ^{[1
,2
]}

Fernandez, P. ^{[2
]}

Piqueras, J. ^{[2
]}

机构：

[1] Univ La Habana, Inst Ciencia & Tecnol Mat, Havana 10400, Cuba

[2] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Mat, E-28040 Madrid, Spain

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2008年 / 43卷 / 5-6期

关键词：

ZnO nanostructures; vapour-solid process; cathodoluminescence;

D O I：

10.1016/j.spmi.2007.06.009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

ZnTe- and TeO2-doped ZnO nanostructures and microstructures were obtained by a vapour-solid process by sintering compacted ZnO powder mixed with each precursor. Cathodoluminescence (CL) measurements show that if TeO2 is used, then the defect band, due mainly to O vacancies (V-O), tends to reduce and even disapear, which indicates that Te reacts with ZnO and passivates the O vacancies better than if ZnTe is used as a precursor. With both precursors, a CL peak at about 3.08-3.17 eV, which overlaps with that of ZnO at about 3.26 eV, indicates that ZnTexO1-x forms. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：600 / 604

页数：5

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