Silicon-Based Material with Spiro-Annulated Fluorene/Triphenylamine as Host and Exciton-Blocking Layer for Blue Electrophosphorescent Devices
作者:Hua Chen、Zuo-Quan Jiang、Chun-Hong Gao、Mei-Feng Xu、Shou-Cheng Dong、Lin-Song Cui、Shun-Jun Ji、Liang-Sheng Liao
DOI:10.1002/chem.201301106
日期:2013.8.26
0H‐spiro[acridine‐9,9′‐fluorene] (SSTF), with spiro structure has been designed, synthesized, and characterized. Its thermal, electronic absorption, and photoluminescence properties were studied. Its energy levels make it suitable as a host material or exciton‐blocking material in blue phosphorescent organic light‐emitting diodes (PhOLEDs). Accordingly, blue‐emitting devices with iridium(III) bis[(4
设计,合成和表征了一种新型的硅基化合物,具有螺环结构的10-苯基-2'-(三苯基甲硅烷基)-10 H-螺[ac啶-9,9'-芴](SSTF)。研究了其热,电子吸收和光致发光特性。它的能级使其适合用作蓝色磷光有机发光二极管(PhOLED)中的主体材料或激子阻挡材料。因此,已经制造出具有铱(III)双[(4,6-二氟苯基)-吡啶鎓-N,C 2 ']吡啶甲酸(FIrpic)作为磷光掺杂剂的发蓝光器件,并显示出低滚降的高效率。特别是在100 cd m -2时为44.0 cd A -1(41.3 lm W -1)当使用SSTF作为基质材料时,在1000 cd m -2时获得了41.9 cd A -1(32.9 lm W -1)。当使用SSTF作为激子阻挡层时,在100 cd m -2时达到28.1 lm W -1和在1000 cd m -2时达到20.6 lm W -1。所有结果均优于参考器件,并显