New Amorphous Hole Blocking Materials for High Efficiency OLEDs

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초록

Two new amorphous molecular materials, 2,5-bis(2',5'-dimethyl-4-triphenylsilyl-phenyl)-[1,3,4]oxadiazole (BDTSO) and 2,5-bis(2',5'-dimethyl-4-triphenylsilyl-phenyl)-[1,3,4]thiadiazo1e (BDTST) were synthesized and investigated as hole blocking materials (HBM) for organic light-emitting diodes. The efficiency of electroluminescent device was improved by using BDTSO instead of BAlq. The current and power efficiency of the device using BDTSO as HBM is 39.6 cd/A and 13.1 lm/W at 10 mA/cm(2), respectively, which is higher compared to the same values for devices using BDTST and BAq which are typically used as HBM.

키워드

AmorphousHole-Blocking MaterialsThiadiazoleOxadiazoleORGANIC ELECTROLUMINESCENT DEVICESPHOSPHORESCENT EMISSIONMOLECULAR MATERIALSBLUEDIODESOXADIAZOLEPOLYMERMOIETYFAMILY
제목
New Amorphous Hole Blocking Materials for High Efficiency OLEDs
저자
Jung, Sung OukPark, Jong-WonKang, Dong MinKim, Jeong-SikPark, Sung-JinKang, PengtaoOh, Hyoung-YunYang, Jung-HwanKim, Yun-HiKwon, Soon-Ki
DOI
10.1166/jnn.2008.IC68
발행일
2008-09
유형
Article; Proceedings Paper
저널명
Journal of Nanoscience and Nanotechnology
8
9
페이지
4838 ~ 4841