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Choi, Kyoung Jin
Energy Conversion Materials (EcoMAT) Lab
Research Interests
  • Solar cells, thermoelectrics, piezoelectric


Metal/graphene sheets as p-type transparent conducting electrodes in GaN light emitting diodes

DC Field Value Language Lee, Jung Min ko Jeong, Hae Yong ko Choi, Kyoung Jin ko Il Park, Won ko 2014-10-24T00:09:05Z - 2014-10-22 ko 2011-07 -
dc.identifier.citation APPLIED PHYSICS LETTERS, v.99, no.4, pp.1 - 3 ko
dc.identifier.issn 0003-6951 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract We demonstrate the use of graphene based transparent sheets as a p-type current spreading layer in GaN light emitting diodes (LEDs). Very thin Ni/Au was inserted between graphene and p-type GaN to reduce contact resistance, which reduced contact resistance from similar to 5.5 to similar to 0.6 Omega/ cm(2), with no critical optical loss. As a result, LEDs with metal-graphene provided current spreading and injection into the p-type GaN layer, enabling three times enhanced electroluminescent intensity compared with those with graphene alone. We confirmed very strong blue light emission in a large area of the metal-graphene layer by analyzing image brightness. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMER INST PHYSICS ko
dc.subject Blue light emissions ko
dc.subject Current spreading ko
dc.subject Electroluminescent intensity ko
dc.subject GaN light-emitting diodes ko
dc.subject Image brightness ko
dc.subject P-type ko
dc.subject P-type GaN ko
dc.subject Transparent conducting electrodes ko
dc.subject Transparent sheets ko
dc.title Metal/graphene sheets as p-type transparent conducting electrodes in GaN light emitting diodes ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-79961097975 ko
dc.identifier.wosid 000293475500015 ko
dc.type.rims ART ko
dc.description.wostc 28 *
dc.description.scopustc 19 * 2015-05-06 * 2014-10-22 *
dc.identifier.doi 10.1063/1.3595941 ko
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