Journal
OPTICAL MATERIALS
Volume 31, Issue 2, Pages 237-240Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2008.03.015
Keywords
Nanostructure; Crystal structure; Chemical vapor deposition; Photoluminescence
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Funding
- National Natural Science Foundation of China [50572095, 50772099, 2006CB604906]
- Zhejiang Provincial Natural Science Foundation of China [Y407183]
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Ga-doped zinc oxide (ZnO) nanorods were prepared by simply evaporating the mixture of Zn powders and Ga droplets. The obtained quasi-aligned nanorods are about 150 nm in diameter and 1.5 mu m in length. X-ray diffraction pattern shows only the diffraction peaks from wurtzite ZnO without secondary phase, and X-ray photoelectron spectroscopy shows the content of Ga in ZnO nanorods as high as about 0.9 at.%. Photoluminescence measurement shows a donor-bound exciton ((DX)-X-0) emission which is considerably broad even at low temperature due to the incorporation of Ga. However, it can be speculated from the photoluminescence that only a part of the incorporated Ga substitute Zn sites and act as donors. (C) 2008 Elsevier B.V. All rights reserved.
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