Document Detail


Transparent conductive graphene electrode in GaN-based ultra-violet light emitting diodes.
MedLine Citation:
PMID:  21164643     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We report a graphene-based transparent conductive electrode for use in ultraviolet (UV) GaN light emitting diodes (LEDs). A few-layer graphene (FLG) layer was mechanically deposited. UV light at a peak wavelength of 368 nm was successfully emitted by the FLG layer as transparent contact to p-GaN. The emission of UV light through the thin graphene layer was brighter than through the thick graphene layer. The thickness of the graphene layer was characterized by micro-Raman spectroscopy. Our results indicate that this novel graphene-based transparent conductive electrode holds great promise for use in UV optoelectronics for which conventional ITO is less transparent than graphene.
Authors:
Byung-Jae Kim; Michael A Mastro; Jennifer Hite; Charles R Eddy; Jihyun Kim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Optics express     Volume:  18     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-12-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  23030-4     Citation Subset:  IM    
Affiliation:
Department of Chemical & Biological Engineering, Korea University, Seoul 136-713, Korea.
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