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Changing the Behavior of Chromophores from Aggregation‐Caused Quenching to Aggregation‐Induced Emission: Development of Highly Efficient Light Emitters in the Solid State
Author(s) -
Yuan Wang Zhang,
Lu Ping,
Chen Shuming,
Lam Jacky W. Y.,
Wang Zhiming,
Liu Yang,
Kwok Hoi Sing,
Ma Yuguang,
Tang Ben Zhong
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200904056
Subject(s) - triphenylamine , aggregation induced emission , electroluminescence , materials science , quenching (fluorescence) , chromophore , solid state , aggregate (composite) , nanotechnology , optoelectronics , photochemistry , engineering physics , fluorescence , optics , chemistry , physics , layer (electronics)
Efficient solid‐state emitters developed by a new approach are described. While emission from triphenylamine (TPA) and its dimer (DTPA) is weakened by aggregation, attaching tetraphenylethene (TPE) units to the amines boosts their emission efficiencies up to 100% in the aggregate state without harming their hole‐transport properties. The resultant 3TPETPA and 4TPEDTPA luminogens show excellent electroluminescence performance.