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http://ir.ncue.edu.tw/ir/handle/987654321/14267
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| 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
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| Issue Date: | 2012-09-10T06:17:07Z
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| 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: | [物理學系] 期刊論文
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