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20 August 2020 Electrochromism in liquid crystals: dynamic control of reflection wavelength and bandwidth
Timothy J. White, Brian Radka
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Proceedings Volume 11472, Liquid Crystals XXIV; 1147205 (2020) https://doi.org/10.1117/12.2566977
Event: SPIE Organic Photonics + Electronics, 2020, Online Only
Abstract
Electrochromic devices have found widespread use in automotive, aerospace, and architectural implementations. Electrical control of the absorption of metallic or polymeric materials can result in transmission swings of more than 50%. This talk will detail our recent research of liquid crystalline compositions in which the selective reflection can be tuned, broadened, and switched. This distinctive electro-optic control is enabled by polymer stabilization of the cholesteric liquid crystal phase. Through control of the materials chemistry and polymerization conditions, we will report findings in which we uniquely demonstrate dynamic control of two separate reflective bands in a single element.
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Timothy J. White and Brian Radka "Electrochromism in liquid crystals: dynamic control of reflection wavelength and bandwidth", Proc. SPIE 11472, Liquid Crystals XXIV, 1147205 (20 August 2020); https://doi.org/10.1117/12.2566977
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KEYWORDS
Liquid crystals
Polymers
Absorption
Aerospace engineering
Chemistry
Crystals
Electro optic polymers
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