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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/14267

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/14267

Title:	Effects of Ticontent on the Optical and Structural Properties of the Ti-doped ZnO Nanoparticles
Authors:	Tseng, Yu-Chih;Lin, Yow-Jon;Chang, Hsing-Cheng;Chen, Ya-Hui;Liu, Chia-Jyi;Zou, Yi-Yan
Contributors:	物理學系
Keywords:	ZnO;Photoluminescence;Raman scattering;Defect;Doping
Date:	2012-02
Issue Date:	2012-09-10T06:17:07Z
Publisher:	Elsevier
Abstract:	This study investigates the effect of Ti content on the optical and structural properties of the Ti-doped ZnO (TixZn1−xO) nanoparticles by x-ray diffraction, scanning electron microscopy, photoluminescence and Raman scattering measurements. A dependence of luminescent properties and crystal structure upon Ti content has been found. The band-edge-luminescence (BEL) intensity of Ti0.10Zn0.90O at room temperature was nearly 1.7 times higher than that of ZnO. The enhanced BEL intensity is attributed to a decrease in the oxygen-vacancy density. However, the lower BEL intensity of Ti0.15Zn0.85O than Ti0.10Zn0.90O is attributed to an increase in the probability of nonradiative recombination. In addition, the intensity of the x-ray diffraction peaks remarkably decreases with increasing Ti content, suggesting weakened crystallinity.
Relation:	Journal ofLuminescence, 132(2): 491-494
Appears in Collections:	[Department of Physics] Periodical Articles

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