Enhancement of the current efficiency of organic light-emitting devices due to the surface plasmonic resonance effect of dodecanethilol-functionalized Au nanoparticles
- Authors
- Kim, Dae Hun; Kim, Tae Whan
- Issue Date
- Jul-2016
- Publisher
- ELSEVIER
- Keywords
- Localized surface plasmonic resonance; Organic light-emitting devices; Optical devices; DDT-Au nanoparticles
- Citation
- ORGANIC ELECTRONICS, v.34, pp.270 - 274
- Indexed
- SCIE
SCOPUS
- Journal Title
- ORGANIC ELECTRONICS
- Volume
- 34
- Start Page
- 270
- End Page
- 274
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/22319
- DOI
- 10.1016/j.orgel.2016.04.034
- ISSN
- 1566-1199
- Abstract
- The photoluminescence intensity of the dodecanethilol-functionalized Au (DDT-Au) nanoparticle (NP) layer/4,4'-cyclohexylidenebis[N,N-bis(4-methylphenyl)benzenamine] (TAPC)/4,4'-bis(N-carbazolyl)-1,1'-biphenyl:tris(2-phenylpyridine) iridium (III) (CPB:Ir(ppy)(3)) film was increased by about 1.15 times compared to that of the TAPC/CPB:Ir(ppy)(3) film due to the effect of coupling between the excitons in the emitting layer and a localized surface plasmonic resonance (LSPR) in the DDT-Au NPs. The current efficiency of the organic light-emitting devices (OLEDs) with the DDT-Au NP layer at 100 cd/m(2) was 14.9 cd/A larger than that without the DDT-Au NP layer, resulting in an enhancement of the out-coupling efficiency. The increase in the current efficiency of the OLEDs with a DDT-Au NP layer was attributed to the enhanced out-coupling efficiency due to the existence of the LSPR generated by the DDT-Au NPs.
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