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Ar–Ar F Self‐Assembly of Star‐Shaped Second‐Order Nonlinear Optical Chromophores Achieving Large Macroscopic Nonlinearities
Author(s) -
Li Zhong'an,
Chen Pengyu,
Xie Yujun,
Li Zhen,
Qin Jingui
Publication year - 2017
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201700138
Subject(s) - chromophore , triphenylamine , moiety , materials science , nonlinear optical , star (game theory) , nonlinear optics , nonlinear system , photochemistry , optoelectronics , physics , stereochemistry , chemistry , quantum mechanics , astrophysics
In this communication, a new series of multibranched second‐order nonlinear optical (NLO) chromophores T1 – T3 are prepared using triphenylamine moiety as the core to link different number of pentafluorobenzene groups modified chromophores. Upon increasing the number of branched chromophore arms attached to the triphenylamine core, the NLO coefficients ( d 33 ) can be significantly improved accordingly, due to an integrated effect of enhanced site isolation and Ar–Ar F self‐assembly. As a result, the star‐shaped T3 consisting of three‐branched chromophore arms realizes an impressive d 33 value, up to 191.8 pm V −1 , making it an excellent potential material candidate for second‐order NLO applications.