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High‐Contrast Red–Green–Blue Tricolor Fluorescence Switching in Bicomponent Molecular Film
Author(s) -
Kim HyeongJu,
Whang Dong Ryeol,
Gierschner Johannes,
Lee Chong Han,
Park Soo Young
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201411568
Subject(s) - luminescence , rgb color model , fluorescence , förster resonance energy transfer , materials science , acrylonitrile , energy transfer , supramolecular chemistry , phenylene , photochemistry , solvent , chemistry , polymer , optoelectronics , organic chemistry , molecule , optics , copolymer , physics , computer science , molecular physics , composite material , operating system
Highly efficient red–green–blue (RGB) tricolor luminescence switching was demonstrated in a bicomponent solid film consisting of (2 Z ,2′ Z )‐2,2′‐(1,4‐phenylene)bis(3‐(4‐butoxyphenyl)acrylonitrile) (DBDCS) and (2 Z ,2′ Z )‐3,3′‐(2,5‐bis(6‐(9 H ‐carbazol‐9‐yl)hexyloxy)‐1,4‐phenylene)bis(2‐(3,5‐bis(trifluoromethyl)phenyl)acrylonitrile) ( m ‐BHCDCS). Reversible RGB luminescence switching with a high ratiometric color contrast ( λ em =594, 527, 458 nm for red, green, and blue, respectively) was realized by different external stimuli such as heat, solvent vapor exposure, and mechanical force. It was shown that Förster resonance energy transfer in the bicomponent mixture could be efficiently switched on and off through supramolecular control.