Changing the Behavior of Chromophores from Aggregation-Caused Quenching to Aggregation-Induced Emission: Development of Highly Efficient Light Emitters in the Solid State

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 harmi...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2010-05, Vol.22 (19), p.2159-2163
Main Authors: Yuan, Wang Zhang, Lu, Ping, Chen, Shuming, Lam, Jacky W. Y., Wang, Zhiming, Liu, Yang, Kwok, Hoi Sing, Ma, Yuguang, Tang, Ben Zhong
Format: Article
Language:English
Subjects:
Aggregation
Aniline Compounds - chemical synthesis
Aniline Compounds - chemistry
Dimerization
Hole-transport materials
Light
Luminescence
Organic light-emitting diodes
Quantum Theory
Spectrometry, Fluorescence
Stilbenes - chemical synthesis
Stilbenes - chemistry
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200904056