Four new N-substituted tetraphenylethene-based benzimidazoles N-R-2-(4-(1,2,2-triphenylvinyl)phenyl)-1H-benzo[d]imidazoles (R = phenyl (3a), R = 4-(tert-butyl)phenyl (3b), R = n-butyl (3c), R = n-hexyl (3d)) were synthesized conveniently by cyclization reaction of 4-tetraphenylenthenealdehyde with N-substituted ortho-nitroaniline. The four compounds exhibit typical aggregation-induced emission (AIE) property with relatively high solid state absolute fluorescence quantum yields (38.1–65.7%) and fast-recoverable mechanochromism property with solid-state fluorescence change between blue and yellow-green. They are thermally stable with decomposition temperatures above 319 °C. Both of multilayer electroluminescence devices fabricated with compounds 3b and 3c as emitters are blue emission. The turn-on voltage of device based on compound 3b is 3.3 V with maximum luminance and current efficiency of 2470 cd/m² and 1.48 cd/A, respectively.

四种新的基于N-取代的四苯基乙烯的苯并咪唑N -R-2-（4-（1,2,2-三苯基乙烯基）苯基）-1 H-苯并[ d ]咪唑（R =苯基（3a），R = 4-通过4-四苯基乙醛与N-取代的邻位环化反应方便地合成了（叔丁基）苯基（3b），R = 正丁基（3c），R = 正己基（3d））。-硝基苯胺。这四种化合物表现出典型的聚集诱导发射（AIE）特性，具有较高的固态绝对荧光量子产率（38.1–65.7％），并且具有快速恢复的机械致变色特性，其中固态荧光在蓝绿色和黄绿色之间变化。它们在分解温度高于319°C时具有热稳定性。用化合物3b和3c作为发射体制造的多层电致发光器件都是蓝色发射。基于化合物3b的设备的开启电压为3.3 V，最大亮度和电流效率分别为2470 cd / m ²和1.48 cd / A。