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High‐Order Non‐Linear Optical Effects in Organic Luminogens with Aggregation‐Induced Emission
Author(s) -
Qian Jun,
Zhu Zhenfeng,
Qin Anjun,
Qin Wei,
Chu Liliang,
Cai Fuhong,
Zhang Hequn,
Wu Qiong,
Hu Rongrong,
Tang Ben Zhong,
He Sailing
Publication year - 2015
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.201500141
Subject(s) - materials science , aggregation induced emission , femtosecond , luminescence , excited state , excitation , polymer , laser , nanoparticle , photochemistry , amphiphile , amplified spontaneous emission , optoelectronics , nanotechnology , fluorescence , optics , copolymer , atomic physics , physics , electrical engineering , composite material , engineering , chemistry
2,3‐bis(4‐(phenyl(4‐(1,2,2‐triphenylvinyl)phenyl)amino)phenyl)fumaronitrile (TTF) shows unique aggregation‐induced emission (AIE) characteristics. Under the excitation of a 1560 nm femtosecond laser, simultaneous three‐photon‐excited luminescence (3PL) and third‐harmonic‐generation signals can be observed from its nanoaggregate and the solid state. TTF is further encapsulated with DSPE‐mPEG (a type of amphiphilic polymer) to form AIE‐active nanoparticles. 3PL brain imaging of mice is achieved based on the nanoparticles.