Dibenzothiophene, dibenzofuran and pyridine substituted tetraphenyl silicon derivatives hosts for green phosphorescent organic light-emitting diodes
作者:Lei Ding、Jiang-Nan Wang、Xiang-Yang Liu、Hua Chen、Femi Igbari、Liang-Sheng Liao
DOI:10.1016/j.orgel.2019.05.033
日期:2019.8
We report the application of four novel tetraphenyl silicon derivatives as host materials in phosphorescent organic light-emitting diodes (PHOLEDs). The novel derivatives are; 3-(4-((4-(dibenzo[b,d]thiophen-4-yl)phenyl)diphenylsilyl)- phenyl)pyridine (DBTSiPy3), 4-(4- ((4-(dibenzo[b,d]thiophen-4-yl)phenyl)diphenyl- silyl)phenyl)pyridine (DBTSiPy4), 3-(4-((4-(dibenzo[b,d]furan-4-yl)phenyl)- dipheny
我们报告了四种新型四苯基硅衍生物作为主体材料在磷光有机发光二极管(PHOLED)中的应用。新的衍生物是;3-(4-((4-(二苯并[b,d]噻吩-4-基)苯基)二苯基甲硅烷基)-苯基)吡啶(DBTSiPy3),4-(4-((4-(二苯并[b,d]噻吩-4-基)苯基)二苯基-甲硅烷基)苯基)吡啶(DBTSiPy4),3-(4-((4-(二苯并[b,d]呋喃-4-基)苯基]-二苯基甲硅烷基)苯基)吡啶(DBFSiPy3)和4-(4-((4-(二苯并[b,d]呋喃-4-基)苯基)二苯基甲硅烷基)苯基)吡啶(DBFSiPy4)。它们是通过将二苯并噻吩(DBT)/二苯并呋喃(DBF)和吡啶单元引入双(4-溴苯基)二苯基硅烷中间体中而制备的。通过理论计算和实验测量研究了DBT / DBF和吡啶单元中氮原子位置(3位对4位)的影响。为了评估这四种材料的电致发光(EL)性能,使用常见的器件结构制造了基于(