Four new indolo [3,2-b]carbazole derivatives containing imidazole-derived moieties, 2,8-bis(4-(9-(4-(tert-butyl)phenyl)-9H-pyreno [4,5-d]imidazol-10-yl)phenyl)-5,11-bis(2-ethylhexyl)-5,11-dihydroindolo [3,2-b]carbazole (Py-ICZ-Py), 2,8-bis(4-(1-(4-(tert-butyl)phenyl)-1H-phenanthro [9,10-d]imidazol-2-yl)phenyl)-5,11-bis(2-ethylhexyl)-5,11-dihydroindolo [3,2-b]carbazole (PI-ICZ-PI), 5,11-bis(2-ethylhexyl)-2,8-bis(4-(1-phenyl-1H-benzo [d]imidazol-2-yl)phenyl)-5,11-dihydroindolo [3,2-b]carbazole (BI-ICZ-BI) and 2,8-bis(4-(1-(4-(tert-butyl)phenyl)-4,5-diphenyl-1H-imidazol-2-yl)phenyl)-5,11-bis(2-ethylhexyl)-5,11-dihydroindolo [3,2-b]carbazole (IM-ICZ-IM), were successfully synthesized for highly efficient blue light-emitting devices. The thermal stabilities, photophysical and electrochemical properties of the hybrid compounds were investigated. These hybrid compounds exhibited strong blue emissions in solutions. Furthermore, the vacuum-processed doped devices based on these compounds were fabricated, in which the devices based on the compound PI-ICZ-PI exhibited the best electroluminescence performance with a maximum brightness of 3973 cd/m², a maximum current efficiency of 3.67 cd/A and a maximum external quantum efficiency (EQE) of 2.64%.

四种新的吲哚[3,2- b ]咔唑衍生物，含咪唑衍生的部分，2,8-双（4-（9-（4-（叔丁基）苯基）-9 H-吡喃诺[4,5- d []咪唑-10-基）苯基）-5,11-双（2-乙基己基）-5,11-二氢吲哚[3,2- b ]咔唑（Py-ICZ-Py），2,8-双（4- （1-（4-（叔丁基）苯基）-1 H-菲并[ 9,10- d ]咪唑-2-基）苯基）-5,11-双（2-乙基己基）-5,11-二氢吲哚[3,2- b ]咔唑（PI-ICZ-PI），5,11-双（2-乙基己基）-2,8-双（4-（1-苯基-1 H-苯并[ d ]]咪唑-2 -基）苯基）-5,11-二氢吲哚[3,2- b]咔唑（BI-ICZ-BI）和2,8-双（4-（1-（4-（叔丁基）苯基）-4,5-二苯基-1 H-咪唑-2-基）苯基）-成功合成了5,11-双（2-乙基己基）-5,11-二氢吲哚并[3,2- b ]咔唑（IM-ICZ-IM），用于高效蓝色发光器件。研究了杂化化合物的热稳定性，光物理和电化学性质。这些杂化化合物在溶液中表现出强烈的蓝色发射。此外，制造了基于这些化合物的真空处理的掺杂器件，其中基于化合物PI-ICZ-PI的器件表现出最佳的电致发光性能，最大亮度为3973 cd / m ^2。，最大电流效率为3.67 cd / A，最大外部量子效率（EQE）为2.64％。