Surface-plasmon-enhanced visible-light emission of ZnO/Ag grating structures

被引：22
作者：
Gwon, Minji [1 ]
Lee, Eunsongyi [1 ]
Kim, Dong-Wook [1 ,2 ]
Yee, Ki-Ju [3 ]
Lee, Min Jung [2 ]
Kim, Youn Sang [4 ,5 ]
机构：
[1] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[2] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea
[3] Chungnam Natl Univ, Dept Phys, Taejon 305764, South Korea
[4] Seoul Natl Univ, Grad Sch Convergence Sci & Technol, Dept Nano Sci & Technol, Seoul 151742, South Korea
[5] Adv Inst Convergence Technol, Suwon 443270, Gyeonggi Do, South Korea
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 07期
关键词：
PHOTOLUMINESCENCE; FILMS;
D O I：
10.1364/OE.19.005895
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigated the optical properties of ZnO/Ag grating structures fabricated by sputtering and nanoimprint lithography. The grating structures exhibited multiple peak features in broad visible-range photoluminescence (PL) spectra. The PL intensity of the grating was larger than that of a planar thin film by up to two orders of magnitude. The surface plasmon (SP) dispersion relation suggested excitation of SPs with various energies of the grating, explaining the broad PL emission. The spectral dependence of the PL intensity was also well supported by the experimental reflectance spectra and the simulated electric field distribution at the ZnO/Ag interface. (c) 2011 Optical Society of America
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收藏
页码：5895 / 5901
页数：7
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