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Reversible Full‐Color Generation with Patterned Yellow Electrochromic Polymers
Author(s) -
Bhuvana Thiruvelu,
Kim Byeonggwan,
Yang Xu,
Shin Haijin,
Kim Eunkyoung
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201205206
Subject(s) - electrochromism , materials science , optoelectronics , diffraction , polymer , doping , white light , diffraction grating , optics , nanotechnology , electrode , grating , composite material , chemistry , physics
A different light : The yellow electrochromic copolymer, propylenedioxythiophene phenylene P(ProDOT‐Ph) is patterned by the micromolding in capillaries (MIMIC) process to fabricate line gratings. Under illumination by white light, colors are generated by diffraction and can be changed by applying an external voltage (see picture). The diffracted color is blue shifted by electrochemical doping, a process that is completely reversible.