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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
ISSN0928-0707
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
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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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