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Experimental observation of electroluminescence enhancement on green LEDs mediated by surface plasmons

Title
Experimental observation of electroluminescence enhancement on green LEDs mediated by surface plasmons
Author
이광걸
Keywords
LIGHT-EMITTING-DIODES; INGAN QUANTUM-WELLS; EXTRACTION EFFICIENCY; EMISSION
Issue Date
2014-08
Publisher
OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Citation
Optics Express, 2014, 22(S5), pA1303-A1309
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.
URI
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-S5-A1303http://hdl.handle.net/20.500.11754/48129
ISSN
1094-4087
DOI
10.1364/OE.22.0A1303
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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