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Rational Design of Molecular Fluorophores for Biological Imaging in the NIR‐II Window
Author(s) -
Yang Qinglai,
Ma Zhuoran,
Wang Huasen,
Zhou Bin,
Zhu Shoujun,
Zhong Yeteng,
Wang Junying,
Wan Hao,
Antaris Alexander,
Ma Rui,
Zhang Xiao,
Yang Jingyi,
Zhang Xiaodong,
Sun Haitao,
Liu Weiqiang,
Liang Yongye,
Dai Hongjie
Publication year - 2017
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.201605497
Subject(s) - electromagnetic shielding , materials science , fluorene , window (computing) , unit (ring theory) , nanotechnology , computer science , polymer , world wide web , composite material , mathematics education , mathematics
A new design for second near‐infrared window (NIR‐II) molecular fluorophores based on a shielding unit–donor–acceptor–donor–shielding unit (S‐D‐A‐D‐S) structure is reported. With 3,4‐ethylenedioxy thiophene as the donor and fluorene as the shielding unit, the best performance fluorophores IR‐FE and IR‐FEP exhibit an emission quantum yield of 31% in toluene and 2.0% in water, respectively, representing the brightest organic dyes in NIR‐II region reported so far.