Effects of Ti content on the optical and structural properties of the Ti-doped ZnO nanoparticles

Yu Chih Tseng; Yow Jon Lin; Hsing Cheng Chang; Ya Hui Chen; Chia Jyi Liu; Yi Yan Zou

doi:10.1016/j.jlumin.2011.08.016

Effects of Ti content on the optical and structural properties of the Ti-doped ZnO nanoparticles

Yu Chih Tseng, Yow Jon Lin, Hsing Cheng Chang, Ya Hui Chen, Chia Jyi Liu, Yi Yan Zou

Research output: Contribution to journal › Article

23 Citations (Scopus)

Abstract

This study investigates the effect of Ti content on the optical and structural properties of the Ti-doped ZnO (Ti_xZn_1-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 Ti_0.10Zn_0.90O 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 Ti_0.15Zn_0.85O than Ti _0.10Zn_0.90O 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.

Original language	English
Pages (from-to)	491-494
Number of pages	4
Journal	Journal of Luminescence
Volume	132
Issue number	2
DOIs	https://doi.org/10.1016/j.jlumin.2011.08.016
Publication status	Published - 2012 Feb 1

All Science Journal Classification (ASJC) codes

Biophysics
Biochemistry
Chemistry(all)
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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Tseng, Y. C., Lin, Y. J., Chang, H. C., Chen, Y. H., Liu, C. J., & Zou, Y. Y. (2012). Effects of Ti content on the optical and structural properties of the Ti-doped ZnO nanoparticles. Journal of Luminescence, 132(2), 491-494. https://doi.org/10.1016/j.jlumin.2011.08.016

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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 Ti 0.10Zn0.90O 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.",

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AU - Tseng, Yu Chih

AU - Lin, Yow Jon

AU - Chang, Hsing Cheng

AU - Chen, Ya Hui

AU - Liu, Chia Jyi

AU - Zou, Yi Yan

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AB - 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 Ti 0.10Zn0.90O 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.

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