| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Improved Light Extraction Efficiency in Organic Light-Emitting Diodes Using Phase-Separated Polymer Films |
| 초록 |
We report high performance internal light outcoupling films based on phase-separated polymers for indium tin oxide-free organic light emitting diodes (OLEDs). The two immiscible polymers of poly(amic acid) and polyimide in a blend film result in nanoporous structures after spin-coating by self-assembly process. The phase-separated films prepared between the glass substrate and the PEDOT:PSS transparent electrode remarkably improve the outcoupling performance of OLEDs. The poly(methyl methacrylate) (PMMA)-assisted phase-separated films significantly improve the current efficiency and power efficiency of OLEDs by a factor 1.82 and 2.06, respectively, compared to the reference device without any outcoupling structure. Our results demonstrate that phase-separated films developed here offer new opportunities in improving the outcoupling efficiency in OLEDs. |
| 저자 |
김정하, 홍주희, 한주원, 박성빈, 김용현
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| 소속 |
부경대 |
| 키워드 |
OLED; Polymer; Light Efficiency; Transparent electrode
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| E-Mail |
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