Transparent-to-dark photo- and electrochromic gels

Gonzalez, L., Liu, C., Dietrich, B. , Su, H., Sproules, S. , Cui, H., Honecker, D., Adams, D. J. and Draper, E. R. (2018) Transparent-to-dark photo- and electrochromic gels. Communications Chemistry, 1, 77. (doi: 10.1038/s42004-018-0075-2)

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Smart windows in which the transmittance can be controlled on demand are a promising solution for the reduction of energy use in buildings. Windows are often the most energy inefficient part of a building, and so controlling the transmittance has the potential to significantly improve heating costs. Whilst numerous approaches exist, many suitable materials are costly to manufacture and process and so new materials could have a significant impact. Here we describe a gel-based device which is both photo- and electrochromic. The gel matrix is formed by the self-assembly of a naphthalene diimide. The radical anion of the naphthalene diimide can be formed photo or electrochemically, and leads to a desirable transition from transparent to black. The speed of response, low potential needed to generate the radical anion, cyclability of the system, temperature stability and low cost mean these devices may be suitable for applications in smart windows.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Dietrich, Bart and Sproules, Dr Stephen and Adams, Dave and Draper, Emily and González Díez, Laura
Authors: Gonzalez, L., Liu, C., Dietrich, B., Su, H., Sproules, S., Cui, H., Honecker, D., Adams, D. J., and Draper, E. R.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Communications Chemistry
Publisher:Nature Research
ISSN (Online):2399-3669
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Communications Chemistry 1: 77
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.5291/ILL-DATA.9-10-1523

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
768041Multicomponent Supramolecular HydrogelsDave AdamsEngineering and Physical Sciences Research Council (EPSRC)EP/L021978/2SCHOOL OF CHEMISTRY
3008950Aligning Self-Assembled Materials for Wearable ElectronicsEmily DraperLeverhulme Trust (LEVERHUL)ECF-2017-223Chemistry