3,3′-Bicarbazole-Based Host Materials for High-Efficiency Blue Phosphorescent OLEDs with Extremely Low Driving Voltage
3,3′-Bicarbazole-Based Host Materials for High-Efficiency Blue Phosphorescent OLEDs with Extremely Low Driving Voltage
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DOI：
10.1002/adma.201200848
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发表时间：
2012-06-26
影响因子：
29.4
通讯作者：
Kido, Junji
中科院分区：
文献类型：
--
作者：
Sasabe, Hisahiro;Toyota, Naoki;Kido, Junji
制备并研究了四种类型的功能化 3,3'-联咔唑衍生物作为蓝色磷光 OLED 的主体材料。通过使用3,3'-联咔唑衍生物/FIrpic薄膜作为发射层，在100 cd m(-2)下获得了46 lm W-1（45 cd A(-1)，EQE 20%）的高功率效率以及3.1 V的极低驱动电压。
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).