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

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 th...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2011-03, Vol.19 (7), p.5895-5901
Main Authors: Gwon, Minji, Lee, Eunsongyi, Kim, Dong-Wook, Yee, Ki-Ju, Lee, Min Jung, Kim, Youn Sang
Format: Article
Language:English
Subjects:
Light
Materials Testing
Refractometry - methods
Scattering, Radiation
Silver - chemistry
Surface Plasmon Resonance - methods
Surface Properties
Zinc Oxide - chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.005895