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Proceedings Paper

Preparation, characterization, and optical properties of carbon doped ZnO nanocrystal
Author(s): Zhijun Wang; Shouchun Li; Youming Lu; Dongxu Zhao; Jiayi Liu; Lianyuan Wang; Jinbao Zhang; Yanwei Gao; Zeheng Wang
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Paper Abstract

In this paper, we prepared carbon doped nanocrystalline ZnO by pyrolyzed zinc stearate at 250°C and 300°C respectively. The XRD curves indicate the sample has polycrystalline hexagonal wurtzite structure. The XRD data of the sample prepared at 250°C and 300°C has a bigger angle shift about 0.05°and 0.3°respectively. That indicate the structure of the sample has some changes. The EDS indicate the sample contains Zn, O and C. So the XRD shift may attribute to the C. The XPS indicate the C doped in the crystal lattice of ZnO of the sample prepared at 300°C, and the sample prepared at 250°C may be only a few of C doped in the crystal lattice of ZnO. The PL of the sample prepared at 300°C only has a weak ultraviolet emission, which indicates C modified the nanocrystalline ZnO surface as a non-radiative recombination center. In this process C could non-radiatively recombine the carries on the nanocrystallin ZnO surface. The sample prepared at 250°C has a strong visible emission at about 530 nm. This emission band could be attributed to oxygen vacancy because C schlepped some oxygen on the nanocrystalline ZnO surface.

Paper Details

Date Published: 23 January 2006
PDF: 8 pages
Proc. SPIE 6029, ICO20: Materials and Nanostructures, 60290R (23 January 2006); doi: 10.1117/12.667707
Show Author Affiliations
Zhijun Wang, Jilin Univ. (China)
Shouchun Li, Jilin Univ. (China)
Youming Lu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Dongxu Zhao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jiayi Liu, Jilin Univ. (China)
Lianyuan Wang, Jilin Univ. (China)
Jinbao Zhang, Jilin Univ. (China)
Yanwei Gao, Jilin Univ. (China)
Zeheng Wang, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 6029:
ICO20: Materials and Nanostructures
Wei Lu; Jeff Young, Editor(s)

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