Preparation and photoluminescent properties of zinc oxide phosphor

被引：27

作者：

Li, Ying Y. ^{[1
]}

Li, Yong Xiu ^{[1
]}

Wu, Yan Li ^{[1
]}

Sun, Wei Li ^{[1
]}

机构：

[1] Nanchang Univ, Res Ctr Rare Earths & Nano Micro Funct Mat, Nanchang 330047, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2007年 / 126卷 / 01期

关键词：

ammonium chloride; zinc oxide green phosphor; thermal oxidation of zinc sulfide;

D O I：

10.1016/j.jlumin.2006.06.012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

ZnO green phosphors have been prepared by thermal oxidation of zinc sulfide under the assistant of ammonium chloride in air atmosphere. Their emission spectra under excitation wavelength at 350 nm show only one green emission peak at around 510 nm. However, the luminescence intensity and excitation peak position of ZnO phosphors are observed to vary significantly with oxidation temperature. The promotion of ammonium chloride for the green emission is explained by the participating of chloride in the replacement process of sulfur by oxygen due to its similar ion radius (r(cl)- = 1.81 A) to that of sulfur ion (r(S2)- = 1.84 angstrom), which is beneficial to the formation of defects including interstitial zinc and oxygen vacancies. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：177 / 181

页数：5

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