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

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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

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All Science Journal Classification (ASJC) codes

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

Cite this

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 - 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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10.1016/j.jlumin.2011.08.016