Cathodoluminescence study of Te-doped ZnO microstructures grown by a vapour-solid process

被引：19

作者：

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

Fernandez, P. ^{[1
]}

Piqueras, J. ^{[1
]}

机构：

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

[2] Univ La Habana, Inst Ciencia & Tecnol Mat, Havana 10440, Cuba

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 08期

关键词：

D O I：

10.1007/s10853-007-2384-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sintering of a mixture of TeO2 and ZnO powders under an Ar flux leads to the formation of elongated Te-doped ZnO nano- and microstructures on the sample surface. The growth of the structures occurs via a vapour-solid process. Cathodoluminescence (CL) and energy dispersive spectroscopy (EDS) measurements show an inhomogeneous incorporation of Te along the growth axis of the structures. An enhancement of the band edge emission upon Te doping is attributed to the passivation of oxygen vacancies by Te atoms, which reduces the deep energy level-related recombination path.

引用

页码：2844 / 2848

页数：5

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