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Poly(ProDOT‐Et 2 ): A High‐Contrast, High‐Coloration Efficiency Electrochromic Polymer
Author(s) -
Gaupp Carleton L.,
Welsh Dean M.,
Reynolds John R.
Publication year - 2002
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20021001)23:15<885::aid-marc885>3.0.co;2-x
Subject(s) - electrochromism , polymer , materials science , high contrast , polymerization , contrast ratio , photochemistry , optics , electrochemistry , contrast (vision) , polymer chemistry , composite number , optoelectronics , chemical engineering , chemistry , electrode , composite material , physics , engineering
The synthesis and electrochemical polymerization of 3,3‐diethyl‐3,4‐dihydro‐2 H ‐thieno‐[3,4‐b][1,4]dioxepine (ProDOT‐Et 2 ) was performed resulting in a stable electrochromic polymer capable of switching between an absorbing blue neutral state and a highly transmissive sky‐blue oxidized state in sub‐second time frames. High optical switching contrast ratios (up to 75% at λ max ) and high composite coloration efficiencies (505 cm 2 /C) were measured.