FDTD simulation of transmittance characteristics of one-dimensional conducting electrodes
- Title
- FDTD simulation of transmittance characteristics of one-dimensional conducting electrodes
- Author
- 안진호
- Issue Date
- 2014-03
- Publisher
- OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
- Citation
- OPTICS EXPRESS,권: 22,호: 6,페이지: 6269-6275
- Abstract
- We investigated transparent conducting electrodes consisting of periodic one-dimensional Ag or Al grids with widths from 25 nm to 5 mu m via the finite-difference time-domain method. To retain high transmittance, two grid configurations with opening ratios of 90% and 95% were simulated. Polarization-dependent characteristics of the transmission spectra revealed that the overall transmittance of micron-scale grid electrodes may be estimated by the sum of light power passing through the uncovered area and the light power penetrating the covered metal layer. However, several dominant physical phenomena significantly affect the transmission spectra of the nanoscale grids: Rayleigh anomaly, transmission decay in TE polarized mode, and localized surface plasmon resonance. We conclude that, for applications of transparent electrodes, the critical feature sizes of conducting 1D grids should not be less than the wavelength scale in order to maintain uniform and predictable transmission spectra and low electrical resistivity. (c) 2014 Optical Society of America
- URI
- https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-6-6269http://hdl.handle.net/20.500.11754/51884
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.22.006269
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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