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Journal Article
Optical Effects of Graphene Electrodes on Organic Light-Emitting Diodes
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- Authors
- Hyunsu Cho, Jin-Wook Shin, Nam Sung Cho, Jaehyun Moon, Jun-Han Han, Young-Duck Kwon, Seungmin Cho, Jeong-Ik Lee
- Issue Date
- 2016-01
- Citation
- IEEE Journal of Selected Topics in Quantum Electronics, v.22, no.1, pp.1-6
- ISSN
- 1077-260X
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- We performed optical simulations and experiments to investigate the internal optics of graphene anode organic light-emitting diodes (OLEDs). The efficiencies, emission distribution, and spectral characteristics of four-layered graphene anode OLEDs were extracted and compared to those of ITO anode OLEDs. Unlike the case of the ITO anode OLED, the efficiencies and emission distributions of graphene anode OLEDs showed a weak dependency on the thickness of the organic layers. Furthermore, marginal changes in the emission spectra were observed. These results were ascribed to the negligible presence of a microcavity effect in the graphene anode OLED.
- KSP Keywords
- Microcavity effect, Optical effects, Optical simulation, Organic layers, Organic light-emitting diodes(OLEDS), Spectral characteristics, emission spectra, graphene anode, graphene electrode, light-emitting diode(LED)