An all-photonic full color RGB system based on molecular photoswitches

Gaowa Naren, Chien-Wei Hsu, Shiming Li, Masakazu Morimoto, Sicheng Tang, Jordi Hernando, Gonzalo Guirado, Masahiro Irie, Françisco M. Raymo, Henrik Sundén and Joakim Andréasson ()
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Gaowa Naren: Chalmers University of Technology
Chien-Wei Hsu: Chalmers University of Technology
Shiming Li: Chalmers University of Technology
Masakazu Morimoto: Rikkyo University Nishi-Ikebukuro 3-34-1, Toshima-ku
Sicheng Tang: University of Miami
Jordi Hernando: Universitat Autònoma de Barcelona
Gonzalo Guirado: Universitat Autònoma de Barcelona
Masahiro Irie: Rikkyo University Nishi-Ikebukuro 3-34-1, Toshima-ku
Françisco M. Raymo: University of Miami
Henrik Sundén: Chalmers University of Technology
Joakim Andréasson: Chalmers University of Technology

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract On-command changes in the emission color of functional materials is a sought-after property in many contexts. Of particular interest are systems using light as the external trigger to induce the color changes. Here we report on a tri-component cocktail consisting of a fluorescent donor molecule and two photochromic acceptor molecules encapsulated in polymer micelles and we show that the color of the emitted fluorescence can be continuously changed from blue-to-green and from blue-to-red upon selective light-induced isomerization of the photochromic acceptors to the fluorescent forms. Interestingly, isomerization of both acceptors to different degrees allows for the generation of all emission colors within the red-green-blue (RGB) color system. The function relies on orthogonally controlled FRET reactions between the blue emitting donor and the green and red emitting acceptors, respectively.

Date: 2019
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DOI: 10.1038/s41467-019-11885-4

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