The optical properties of ZnO nanoparticles capped with polyvinyl butyral

	The optical properties of ZnO nanoparticles capped with polyvinyl butyral
其他题名	论文其他题名
	Tong Y. H.; Liu Y. C.; Lu S. X.; Dong L.; Chen S. J.; Xiao Z. Y.
	2004
发表期刊	Journal of Sol-Gel Science and Technology
ISSN	0928-0707
卷号	30 期号:3 页码:157-161
摘要	ZnO nanoparticles capped with polyvinyl butyral (PVB) have been synthesized by the sol-gel process. Photoluminescence (PL) spectra show a remarkable decrease in visible emission intensity after ZnO nanoparticles are capped with PVB, which indicates that dangling bonds and defect states at the surface of ZnO nanoparticles are markedly passivated. As a result, the process of surface-trapped hole tunneling back into the particles to form V-O** recombination center is blocked. The PL spectra of thin films show a strong ultraviolet (UV) emission with very weak visible emission. The typical intensity ratio of the UV emission at 3.45 eV to the visible emission at about 2.41 eV is 43.3, which shows an obvious improvement in luminescence properties by the surface passivation with PVB. Low-temperature PL spectra of ZnO powder at 93.8 K are dominated by free exciton, bound exciton and the LO-phonon replica of the bound exciton.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25032
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Tong Y. H.,Liu Y. C.,Lu S. X.,et al. The optical properties of ZnO nanoparticles capped with polyvinyl butyral[J]. Journal of Sol-Gel Science and Technology,2004,30(3):157-161.
APA	Tong Y. H.,Liu Y. C.,Lu S. X.,Dong L.,Chen S. J.,&Xiao Z. Y..(2004).The optical properties of ZnO nanoparticles capped with polyvinyl butyral.Journal of Sol-Gel Science and Technology,30(3),157-161.
MLA	Tong Y. H.,et al."The optical properties of ZnO nanoparticles capped with polyvinyl butyral".Journal of Sol-Gel Science and Technology 30.3(2004):157-161.

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