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Experimental observation of electroluminescence enhancement on green LEDs mediated by surface plasmonsopen access
- Issue Date
- Aug-2014
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS EXPRESS, v.22, no.17, pp.A1303 - A1309
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS EXPRESS
- Volume
- 22
- Number
- 17
- Start Page
- A1303
- End Page
- A1309
- ISSN
- 1094-4087
- Abstract
- We experimentally demonstrate the 1.5-fold enhancement of the electroluminescence (EL) of surface-plasmon (SP)-mediated green LEDs. On the p-clad surface of InGaN/GaN multi-quantum well LEDs, a 2-dimensional, second-order grating structure is textured and coated with an Ag electrode. With this setup, a larger EL enhancement factor is obtained at a higher injected current, which suggests that SP-LEDs can be a possible solution to efficiency droop, which is one of the main problems in developing high-power LEDs. Details regarding the implementation of our device are discussed.
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Related Researcher
- Lee, Kwang Geol
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)