Journal
ADVANCED MATERIALS
Volume 24, Issue 24, Pages 3212-3217Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201200848
Keywords
host material; blue phosphorescent OLED; 3; 3'-bicarbazole; low driving voltage
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Funding
- Japan Regional Innovation Strategy Program by the Excellence (J-RISE) (Creating international research hub for advanced organic electronics) of Japan Science and Technology Agency (JST)
- KAKENHI [23750204]
- Grants-in-Aid for Scientific Research [23750204] Funding Source: KAKEN
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Four types of functionalized 3,3'-bicarbazole derivatives are prepared and investigated as a host material for blue phosphorescent OLEDs. By using a 3,3'-bicarbazole derivative/FIrpic film as an emissive layer, high power efficiency of 46 lm W-1 (45 cd A(-1), EQE 20%) with an extremely low driving voltage at 3.1 V is obtained at 100 cd m(-2).
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