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Transparent Wood Smart Windows: Polymer Electrochromic Devices Based on Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate) Electrodes
KTH, Superseded Departments (pre-2005), Fibre and Polymer Technology.ORCID iD: 0000-0002-1591-5815
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2018 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, Vol. 11, no 5, p. 854-863Article in journal (Refereed) Published
Abstract [en]

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 cm2 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. 

Place, publisher, year, edition, pages
Wiley-VCH Verlag , 2018. Vol. 11, no 5, p. 854-863
Keyword [en]
electrochemistry, electrochromism, polymers, thin films, wood, Conducting polymers, Conjugated polymers, Electrochromic devices, Electrodes, Styrene, Thermal insulation, Coloration efficiencies, High strength and toughness, High-throughput method, Low driving voltage, Mechanically robust, Poly(styrene sulfonate), Poly-3, 4-ethylenedioxythiophene, Transparent conducting electrodes, Energy efficiency
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Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-227395DOI: 10.1002/cssc.201702026ISI: 000427005900006Scopus ID: 2-s2.0-85041209261OAI: oai:DiVA.org:kth-227395DiVA, id: diva2:1211067
Note

Export Date: 9 May 2018; Article; CODEN: CHEMI; Correspondence Address: Berglund, L.; Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56–58, Sweden; email: blund@kth.se; Funding details: Georgia Tech, Georgia Institute of Technology; Funding details: 742733, ERC, European Research Council; Funding details: BASF; Funding details: Nanotechnology Initiative; Funding text: Financial support of this work is from the Renewable Bioproducts Institute at the Georgia Institute of Technology. The authors thank BASF for the synthesis of the electrochromic polymers used in this study. L.B. acknowledges funding from the European Research Council Advanced Grant No. 742733, Wood NanoTech. QC 20180530

Available from: 2018-05-30 Created: 2018-05-30 Last updated: 2018-05-30Bibliographically approved

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Li, YuanyuanBerglund, Lars

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