Structural Controls of Tetraphenylbenzene-based AIEgens for Non-doped Deep Blue Organic Light-emitting Diodes  

作　　者：HAN Pengbo QIN Anjun 

机构地区：[1]TANG Ben Zhong1,2State Key Laboratory of Luminescent Materials and Devices,Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates,SCUT-HKUST Joint Research Institute,AIE Institute,Center for Aggregation-induced Emission,South China University of Technology(SCUT),Guangzhou,510640,P.R.China [2]Department of Chemistry,Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction,Institute for Advanced Study,and Department of Chemical and Biological Engineering,The Hong Kong University of Science&Technology(HKUST),Clear Water Bay,Kowloon,Hong Kong,P.R.China

出　　处：《Chemical Research in Chinese Universities》2021年第1期16-24,共9页高等学校化学研究（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China(Nos.21788102,21525417);the Natural Science Foundation of Guangdong Province,China(Nos.2019B030301003,2016A030312002);the Innovation and Technology Commission of Hong Kong,China(No.ITC-CNERC14S01).

摘　　要：Aggregation-induced emission(AIE)has emerged as a new concept,giving highly efficient solid-state photoluminescence.Particularly,AIE luminogens(AIEgens)with deep blue emission(400–450 nm)have displayed salient advantages for non-doped organic light-emitting diodes(OLEDs).However,deep blue emitters with Commission Internationale de L’Eclairage(CIE)coordinates less than 0.08 are still rare.In this review,we outline the latest achievements in the molecular guidelines based on the AIE core of tetraphenylbenzene(TPB)for developing efficient deep blue AIEgens.We provide insights into the construction of deep blue emitters with high horizontal orientation by regulating the length of the linear molecule.We also discuss the luminescence mechanisms of these AIEgens-based OLEDs by using the magnetic field effects measurements.Finally,a summary of the challenges and perspectives of deep blue AIEgens for non-doped OLEDs is also presented.

关 键 词：Aggregation-induced emission(AIE) Non-doped device Organic light-emitting diode Deep blue emitter Tetraphenylbenzene 

分 类 号：TN312.8[电子电信—物理电子学]