Dependence of luminescent properties and crystal structure of Li-doped ZnO nanoparticles upon Li content

被引：17

作者：

Tseng, Yu-Chih ^{[2
]}

Lin, Yow-Jon ^{[1
]}

Chang, Hsing-Cheng ^{[3
]}

Chen, Ya-Hui ^{[4
]}

Liu, Chia-Jyi ^{[2
]}

Zou, Yi-Yan ^{[2
]}

机构：

[1] Natl Changhua Univ Educ, Inst Photon, Changhua 500, Taiwan

[2] Natl Changhua Univ Educ, Dept Phys, Changhua 500, Taiwan

[3] Feng Chia Univ, Dept Automat Control Engn, Taichung 407, Taiwan

[4] Feng Chia Univ, PhD Program Elect & Commun Engn, Taichung 407, Taiwan

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 08期

关键词：

Sol-gel growth; Photoluminescence spectroscopy; Nanostructures; Point defects; THIN-FILMS;

D O I：

10.1016/j.jlumin.2012.03.009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study examines the effect of Li content on the luminescent and structural properties of LixZn1-xO nanoparticles by scanning electron microscopy, x-ray diffraction, photoluminescence (PL) and Raman scattering measurements. A dependence of luminescent properties and crystal structure upon Li content was found. The intensity of the band-edge luminescence of Li0.10Zn0.90O nanoparticles was nearly 10 times higher than that of the ZnO nanoparticles. This is because of the combined effect of the improved crystallinity and a decrease in the probability of nonradiative recombination. However, the incorporation of excess Li into ZnO degrades the PL intensity due to the combined effect of the weakened crystallinity and the increased probability of nonradiative recombination. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1896 / 1899

页数：4

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