DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwon, KC | - |
dc.contributor.author | Kim, S | - |
dc.contributor.author | Kim, C | - |
dc.contributor.author | Lee, JL | - |
dc.contributor.author | Kim, SY | - |
dc.date.accessioned | 2016-03-31T07:46:49Z | - |
dc.date.available | 2016-03-31T07:46:49Z | - |
dc.date.created | 2015-03-05 | - |
dc.date.issued | 2014-11 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.other | 2014-OAK-0000031316 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/14004 | - |
dc.description.abstract | Organic light-emitting diodes (OLEDs) were fabricated on a graphene electrode, with synthesized graphene being transferred and simultaneously doped with supporting polymers. Poly[methyl methacrylate] (PMMA) and fluoropolymer (CYTOP) layers were used as the supporting polymers. The sheet resistance of CYTOP-assisted graphene (CYTOP-G) with 4 layers of graphene is 200 Omega/sq., which is lower than that of PMMA-assisted graphene (PMMA-G, 330 Omega/sq.) The transmittance value of PMMA-G and CYTOP-G with 4 graphene layers is higher than 85%. CYTOP-G is shown to exhibit a higher tolerance to UV-O-3 treatment and thermal annealing than PMMA-G. Work function of CYFOP-G is 4.7 eV, which is higher than that of PMMA-G (4.3 eV). X-ray photoemission and Raman spectroscopy data indicate that CYTOP-G has numerous C-F bonds on the surface exhibiting p-type semiconductor properties, owing to the high electronegativity of fluorine. The turn-on voltage of an OLED based on CYTOP-G with 4 graphene layers is 4.2 V, which is lower than that of indium tin oxide (ITO)-based one (4.5 eV). Furthermore, the luminance ratio of graphene-based OLEDs to ITO-based OLEDs was calculated to be 104% for CYTOP-G, and 97% for PMMA-G. According to the ultraviolet photoemission spectra, the hole injection barrier in CYFOP-G is lower by about 0.5 eV than the hole injection barrier in PMMA-G. These results are very encouraging to the prospect of replacing ITO electrodes with graphene ones in OLED applications. (C) 2014 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.subject | Graphene | - |
dc.subject | CYTOP | - |
dc.subject | Graphene transfer | - |
dc.subject | Organic light-emitting diodes | - |
dc.subject | Fluoropolymer | - |
dc.subject | CHEMICAL-VAPOR-DEPOSITION | - |
dc.subject | FEW-LAYER GRAPHENE | - |
dc.subject | TRANSPARENT ELECTRODES | - |
dc.subject | WORK-FUNCTION | - |
dc.subject | HIGH-QUALITY | - |
dc.subject | SOLAR-CELLS | - |
dc.subject | FILMS | - |
dc.subject | OXIDE | - |
dc.subject | GRAPHITE | - |
dc.subject | ANODES | - |
dc.title | Fluoropolymer-assisted graphene electrode for organic light-emitting diodes | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | - |
dc.identifier.doi | 10.1016/J.ORGEL.2014.08.041 | - |
dc.author.google | Kwon, KC | - |
dc.author.google | Kim, S | - |
dc.author.google | Kim, C | - |
dc.author.google | Lee, JL | - |
dc.author.google | Kim, SY | - |
dc.relation.volume | 15 | - |
dc.relation.issue | 11 | - |
dc.relation.startpage | 3154 | - |
dc.relation.lastpage | 3161 | - |
dc.contributor.id | 10105416 | - |
dc.relation.journal | ORGANIC ELECTRONICS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.15, no.11, pp.3154 - 3161 | - |
dc.identifier.wosid | 000344424500068 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 3161 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 3154 | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 15 | - |
dc.contributor.affiliatedAuthor | Lee, JL | - |
dc.identifier.scopusid | 2-s2.0-84907287947 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 9 | - |
dc.description.scptc | 7 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | FEW-LAYER GRAPHENE | - |
dc.subject.keywordPlus | WORK-FUNCTION | - |
dc.subject.keywordPlus | HIGH-QUALITY | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | CYTOP | - |
dc.subject.keywordAuthor | Graphene transfer | - |
dc.subject.keywordAuthor | Organic light-emitting diodes | - |
dc.subject.keywordAuthor | Fluoropolymer | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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