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Title: Viologen-based electrochromic materials: From small molecules, polymers and composites to their applications
Authors: Shah, K.W. 
Wang, S.-X.
Soo, D.X.Y.
Xu, J. 
Keywords: Electrochromic
Electrochromic device
Viologen-based polymer
Issue Date: 2019
Publisher: MDPI AG
Citation: Shah, K.W., Wang, S.-X., Soo, D.X.Y., Xu, J. (2019). Viologen-based electrochromic materials: From small molecules, polymers and composites to their applications. Polymers 11 (11) : 1839. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Organic materials have gained considerable attention for electrochromic (EC) applications owing to improved EC performance and good processability. As a class of well-recognized organic EC materials, viologens have received persistent attention due to the structural versatility and property tunability, and are major active EC components for most of the marketed EC devices. Over the past two decades, extensive efforts have been made to design and synthesize different types of viologen-based materials with enhanced EC properties. This review summarizes chemical structures, preparation and EC properties of various latest viologen-based electrochromes, including small viologen derivatives, main-chain viologen-based polymers, conjugated polymers with viologen side-chains and viologen-based organic/inorganic composites. The performance enhancement mechanisms are concisely discussed. The current marketed viologens-based electrochromic devices (ECDs) are briefly introduced and an outlook on the challenges and future exploration directions for viologen-based materials and their ECDs are also proposed. © 2019 by the authors.
Source Title: Polymers
ISSN: 20734360
DOI: 10.3390/polym11111839
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications

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