Flexible thermal responsive infrared reflector based on cholesteric liquid crystals and polymer stabilized cholesteric liquid crystals

BeiBei Zhang, XianYu Lin, YuXin You, XiaoWen Hu, Laurens De Haan, Wei Zhao, GuoFu Zhou, Dong Yuan.

Flexible thermal responsive infrared reflector based on cholesteric liquid crystals and polymer stabilized cholesteric liquid crystals

ABSTRACT

In this study, we fabricated a temperature-responsive infrared reflector that adjusts to temperature changes by changing its transmittance of incident IR light. The device utilized a thermally induced change in the pitch of a cholesteric liquid crystal (CLC) to achieve near-infrared light reflection in a particular wavelength range. In addition, a polymer-stabilized cholesteric liquid crystal (PSCLC) was used as an alternative to further optimize the device performance. Polyethylene terephthalate (PET) was used as the substrate material to allow the reflector to be flexible. The light transmission performance of the reflector at different bending angles was explored, and no significant effect was found. A simulated solar device was established to study the temperature regulation effects of both CLC and PSCLC devices.


Language English
Journal Optics Express
Year
2019
Pages 13516-13525
Volume 27
Issue number
9
Status published


KEYWORDS

Infrared reflector, cholesteric liquid crystal, thermal response, smart window, flexible device


DOI: 10.1364/OE.27.013516

Fingerprint

  • smart window

    smart window

  • polymer stabilized liquid crys

    polymer stabilized liquid crystal


  • IR reflection

    IR reflection


  • green building

    green building


  • thermoresponsive

    thermoresponsive

Cite this

  • APA
BeiBei Zhang, XianYu Lin, YuXin You, XiaoWen Hu, Laurens De Haan, Wei Zhao, GuoFu Zhou, Dong Yuan. Flexible thermal responsive infrared reflector based on cholesteric liquid crystals and polymer stabilized cholesteric liquid crystals. Optics Express, 2019, 27(9), 13516-13525.

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