Superimposed emissions on enhanced green emission from ZnO:Pr powders by evacuated sealed silica tube method

被引：7

作者：

Inoue, Yoshihiro ^{[1
]}

Okamoto, Masaki ^{[1
]}

Morimoto, Jun ^{[1
]}

机构：

[1] Natl Def Acad, Dept Mat Sci & Engn, Yokosuka, Kanagawa 2398686, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 5A期

关键词：

ZnO; photoacoustic; superimposed emission; praseodymium; neodymium; holmium;

D O I：

10.1143/JJAP.45.4128

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The origin of the superimposed emissions in the, green photoluminescence (PL) spectra of ZnO:Pr powders is discussed by comparing the PL excitation and photoacoustic (PA) spectra of ZnO:RE (Pr, Nd, and Ho) powders prepared by the evacuated sealed silica glass method. Assuming that the superimposed emissions are related to the shorter-wavelength-side light absorption of Pr3+, the absorption of Pr3+ is caused by the nonradiative recombination of excitons localized and delocalized at Pr3+ in the vicinity of the grain boudary and ZnO matrix.

引用

页码：4128 / 4130

页数：3

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