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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제12권 제2호
- 발행연도
- 2011.1
- 수록면
- 80 - 83 (4page)
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초록· 키워드
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We have fabricated phosphorescent white organic light-emitting devices (WOLEDs) with a spin-coated poly(Nvinylcarbazole)[PVK] host layer. Iridium(III) bis[(4,6-difluorophenyl)-pyridinato-N,C^(2')]picolinate (FIrpic), tris(2-phenylpyridine)iridium(III) [Ir(ppy)3], and tris(2-phenyl-1-quinoline)iridium(III) [Ir(phq)_3], were used as the blue,green, and red guest materials, respectively. The PVK was mixed with FIrpic, Ir(ppy)_3, and Ir(phq)_3 molecules in a chlorobenzene solution and spin-coated in order to prepare the emission layer; 3-(4-biphenylyl)-4-phenyl-5-(4-tertbutylphenyl)-1,2,4-triazole (TAZ) was used as an electron transport material. The resultant device structure was ITO/PVK:FIrpic:Ir(ppy)_3:Ir(phq)_3/TAZ/LiF/Al. The electroluminescence, efficiency, and electrical conduction characteristics of the WOLEDs based on the doped PVK host layer were investigated. The maximum current efficiency of the three wavelength WOLED with the doped PVK host was 19.2 cd/A.
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