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Transparent Wood Smart Windows: Polymer Electrochromic Devices Based on Poly(3,4‐Ethylenedioxythiophene):Poly(Styrene Sulfonate) Electrodes
Author(s) -
Lang Augustus W.,
Li Yuanyuan,
De Keersmaecker Michel,
Shen D. Eric,
Österholm Anna M.,
Berglund Lars,
Reynolds John R.
Publication year - 2018
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201702026
Subject(s) - electrochromism , pedot:pss , materials science , sulfonate , electrochromic devices , electrode , poly(3,4 ethylenedioxythiophene) , styrene , polymer , conductive polymer , composite material , optoelectronics , chemistry , copolymer , sodium , metallurgy
Transparent wood composites, with their high strength and toughness, thermal insulation, and excellent transmissivity, offer a route to replace glass for diffusely transmitting windows. Here, conjugated‐polymer‐based electrochromic devices (ECDs) that switch on‐demand are demonstrated using transparent wood coated with poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) as a transparent conducting electrode. These ECDs exhibit a vibrant magenta‐to‐clear color change that results from a remarkably colorless bleached state. Furthermore, they require low energy and power inputs of 3 mWh m −2 at 2 W m −2 to switch due to a high coloration efficiency (590 cm 2 C −1 ) and low driving voltage (0.8 V). Each device component is processed with high‐throughput methods, which highlights the opportunity to apply this approach to fabricate mechanically robust, energy‐efficient smart windows on a large scale.