Nanoscaled ZnO films used as enhanced substrates for fluorescence detection of dyes

doi:10.1088/1674-1056/21/3/037803

中国物理B ›› 2012, Vol. 21 ›› Issue (3): 37803-037803.doi: 10.1088/1674-1056/21/3/037803

刘艳松¹,Yi Fu²,Ramachandram Badugu²,Joseph R. Lakowicz²,许小亮¹

收稿日期:2011-10-07 修回日期:2011-11-10 出版日期:2012-02-15 发布日期:2012-02-15
通讯作者: 刘艳松,lysong@mail.ustc.edu.cn E-mail:lysong@mail.ustc.edu.cn

Nanoscaled ZnO films used as enhanced substrates for fluorescence detection of dyes

Liu Yan-Song(刘艳松)^a)†, Yi Fu^b), Ramachandram Badugu^b), Joseph R. Lakowicz^b), and Xu Xiao-Liang(许小亮)^a)

a. Department of Physics, University of Science and Technology of China, Hefei 230026, China;
b. Center for Fluorescence Spectroscopy, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, Maryland 21021, USA

Received:2011-10-07 Revised:2011-11-10 Online:2012-02-15 Published:2012-02-15
Contact: Liu Yan-Song,lysong@mail.ustc.edu.cn E-mail:lysong@mail.ustc.edu.cn
Supported by:
Project supported by the National Institutes of Health of USA (Grant Nos. HG002655, HG005090, and EB006521) and the National Natural Science Foundation of China (Grant No. 50872129).

摘要/Abstract

Abstract: The ability of nanoscaled ZnO films to enhance fluorescence was studied. We found that the fluorescence intensities of Cy5, rhodamine 6G, and fluorescein can be enhanced about 10-fold on nanoscaled ZnO films as compared to that on glass substrates. The lifetimes of all samples were measured, and no obvious change in lifetime was observed for dyes on different substrates. The mechanism for the nanoscaled ZnO film enhanced fluorescence appears to be different from that for the metal-fluorophore systems.

Key words: nanoscaled ZnO films, lifetime, enhanced fluorescence, dye

中图分类号: (Time resolved luminescence)

78.47.jd

78.66.Hf (II-VI semiconductors) 78.90.+t (Other topics in optical properties, condensed matter spectroscopy and other interactions of particles and radiation with condensed matter)

刘艳松, Yi Fu, Ramachandram Badugu, Joseph R. Lakowicz, 许小亮. [J]. 中国物理B, 2012, 21(3): 37803-037803.

Liu Yan-Song(刘艳松), Yi Fu, Ramachandram Badugu, Joseph R. Lakowicz, and Xu Xiao-Liang(许小亮) . Nanoscaled ZnO films used as enhanced substrates for fluorescence detection of dyes[J]. Chin. Phys. B, 2012, 21(3): 37803-037803.

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Nanoscaled ZnO films used as enhanced substrates for fluorescence detection of dyes

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