A New Approach to Prepare Efficient Blue AIE Emitters for Undoped OLEDs
A New Approach to Prepare Efficient Blue AIE Emitters for Undoped OLEDs
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DOI：
10.1002/chem.201303522
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发表时间：
2014-04-25
影响因子：
4.3
通讯作者：
Li, Zhen
中科院分区：
文献类型：
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作者：
Huang, Jing;Tang, Runli;Li, Zhen
合成了两种具有聚集诱导发光活性的发光材料TPE-pTPA和TPE-mTPA。为了比较，制备了另外六种类似的化合物。由于引入了空穴占主导地位的三苯胺（TPA）、高发光效率的芴基团以及非共轭键，有效地限制了所得发光体的共轭长度，保证了其蓝光发射。基于TPE-pTPA和TPE-mTPA的未掺杂有机电致发光器件具有蓝色或深蓝色发射、低开启电压（3V）和高电致发光效率，其L-max、（C，max）和（P，max）值分别高达26697 cdm（-2）、3.37cdA（-1）和2.40LmW（-1）。
Two aggregation-induced emission active luminogens (TPE-pTPA and TPE-mTPA) were successfully synthesized. For comparison, another six similar compounds were prepared. Because of the introduced hole-dominated triphenylamine (TPA), fluorene groups with high luminous efficiency, and unconjugated linkages, the conjugation length of the obtained luminogens is effectively restricted to ensure their blue emission. The undoped organic light-emitting diodes based on TPE-pTPA and TPE-mTPA exhibited blue or deep-blue emissions, low turn-on voltages (3V), and high electroluminescence efficiencies with L-max, (C,max), and (P,max) values of up to 26697cdm(-2), 3.37cdA(-1), and 2.40LmW(-1).