Substituent effects on the photophysical and electrochemical properties of iridium(III) complexes containing an arylcarbazolyl moiety
作者:Chun Liu、Xiaofeng Rao、Xin Lv、Jieshan Qiu、Zilin Jin
DOI:10.1016/j.dyepig.2014.04.039
日期:2014.10
A series of new heteroleptic cyclometalated iridium(III) complexes containing a 9-(4-(pyridin-2-yl)phenyl)-9H-carbazole molecular framework have been successfully synthesized and characterized. All of the iridium(III) complexes are thermally stable solids and highly efficient electrophosphors. Different substituents, electron-donating group (–CH3) and electron-withdrawing groups (–F, –CF3), were introduced
已成功合成和表征了一系列新型的含有9-(4-(吡啶-2-基)苯基)-9H-咔唑分子骨架的杂金属环化铱(III)配合物。所有的铱(III)配合物都是热稳定的固体和高效的电致磷光体。将不同的取代基,供电子基团(–CH 3)和吸电子基团(–F,–CF 3)引入配体中吡啶基环的4位或5位,以验证它们对取代基的影响。这些铱磷光体的光物理,电化学,光和电磷光性能。可以基于带有5-CF 3的配合物来制造具有出色器件性能的电致磷光OLED。该单元显示出大约43.2 cd A -1的最大亮度效率,对应于大约12.6%的外部量子效率和27.1 lm W -1的功率效率。