DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, SH | - |
dc.contributor.author | Bae, TS | - |
dc.contributor.author | Heo, W | - |
dc.contributor.author | Joo, T | - |
dc.contributor.author | Song, KD | - |
dc.contributor.author | Park, HG | - |
dc.contributor.author | Ryu, SY | - |
dc.date.accessioned | 2017-07-19T12:20:54Z | - |
dc.date.available | 2017-07-19T12:20:54Z | - |
dc.date.created | 2016-02-01 | - |
dc.date.issued | 2015-07-15 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/35687 | - |
dc.description.abstract | The effect of varying degrees of surface and vertical coverage of gold nanoparticles (Au-NPs) by poly-(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS), which was used as a capping layer between indium tin oxide (ITO) and a hole transport layer (HTL) on small-molecule fluorescent organic light-emitting diodes (OLEDs), was systemically investigated. With respect to the Au-NP loading amount and size, the resultant current densities influenced the charge balance and, therefore, the OLED device performance. When the capping layer consisted of ITO/Au-NPs/PEDOT:PSS+Au-NPs, superior device performance was obtained with 10-nm Au-NPs through increased surface coverage in comparison to other Au-NP PEDOT:PSS coverage conditions. Furthermore, the Au-NP size determined the vertical coverage of the capping layer. The current densities of OLEDs containing small Au-NPs (less than 30 nm, small vertical coverage) covered by PEDOT:PSS decreased because of the suppression of the hole carriers by the Au-NP trapping sites. However, the current densities of the devices with large Au-NPs (over 30 nm, large vertical coverage) increased. The increased electromagnetic fields observed around relatively large Au-NPs under electrical bias were attributed to increased current densities in the OLEDs, as confirmed by the finite-difference time-domain simulation. These results show that the coverage conditions of the Au-NPs by the PEDOT:PSS clearly influenced the OLED current density and efficiency. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.title | Effects of Gold-Nanoparticle Surface and Vertical Coverage by Conducting Polymer between Indium Tin Oxide and the Hole Transport Layer on Organic Light-Emitting Diodes | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/ACSAMI.5604248 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.7, no.27, pp.15031 - 15041 | - |
dc.identifier.wosid | 000358395200060 | - |
dc.date.tcdate | 2019-03-01 | - |
dc.citation.endPage | 15041 | - |
dc.citation.number | 27 | - |
dc.citation.startPage | 15031 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 7 | - |
dc.contributor.affiliatedAuthor | Joo, T | - |
dc.identifier.scopusid | 2-s2.0-84937037877 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 17 | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | gold nanoparticles | - |
dc.subject.keywordAuthor | organic light-emitting diodes | - |
dc.subject.keywordAuthor | conducting polymer | - |
dc.subject.keywordAuthor | surface and vertical coverage | - |
dc.subject.keywordAuthor | charge balance | - |
dc.subject.keywordAuthor | surface plasmonic resonance effect | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.