title: Surface-plasmon-enhanced visible-light emission of ZnO/Ag grating structures.
abstract: 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.
authors: Department of Physics, Ewha Womans University, Seoul, Korea.
authors: Minji
authors: M
authors: Gwon
authors: Eunsongyi
authors: E
authors: Lee
authors: Dong-Wook
authors: DW
authors: Kim
authors: Ki-Ju
authors: KJ
authors: Yee
authors: Min Jung
authors: MJ
authors: Lee
authors: Youn Sang
authors: YS
authors: Kim
mesh_terms: D008027:Light; D008422:Materials Testing; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D012834:Silver; D015034:Zinc Oxide