Highly efficient emitters of ultra-deep-blue light made from chrysene chromophores
作者:Hwangyu Shin、Hyocheol Jung、Beomjin Kim、Jaehyun Lee、Jiwon Moon、Joonghan Kim、Jongwook Park
DOI:10.1039/c5tc03749b
日期:——
Chrysene, which has a wide band gap, was selected as an emission core to develop and study new materials that emit ultra-deep-blue light with high efficiency. Six compounds introducing various side groups were designed and synthesized: 6,12-bis(3′,5′-diphenylphenyl)chrysene (TP-C-TP), 6-(3′,5′-diphenylphenyl)-12-(3\,5\-diphenylbiphenyl-4′′-yl)chrysene (TP-C-TPB) and 6,12-bis(3′′,5′′-diphenylbiphenyl-4′-yl)chrysene
具有宽禁带宽度的丙烯被选作发射核,用于开发和研究高效发射超深蓝光的新材料。设计并合成了六个引入各种侧基的化合物:6,12-双(3',5'-二苯基苯基))(TP-C-TP),6-(3',5'-二苯基苯基)-12-(3 \,5 \-二苯基联苯-4''-基)苯(TP-C-TPB)和6,12-双(3'',5''-二苯基联苯-4'-基)苯(TPB-C-TPB),其中含有庞大的芳族侧基;和N,N,N ',N'-四苯基-丙烯-6,12-二胺(DPA-C-DPA),[12-(4-二苯基氨基-苯基)-Chrysen-6-yl]-二苯胺(DPA- TPA)和含有芳族胺基的6,12-双[4-(二苯基氨基)苯基]丙烯(TPA-C-TPA)被设计用于提高空穴注入性能。合成材料在薄膜状态下的最大吸收波长为342–402 nm,在417–464 nm处显示深蓝色光致发光(PL)。在非掺杂有机发光二极管(OLED)器件中