基于胆甾相液晶和聚合物稳定胆甾相液晶的柔性热响应红外反射器。

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

作者信息

Zhang Beibei, Lin Xianyu, You Yuxin, Hu Xiaowen, de Haan Laurens, Zhao Wei, Zhou Guofu, Yuan Dong

出版信息

Opt Express. 2019 Apr 29;27(9):13516-13525. doi: 10.1364/OE.27.013516.

DOI:10.1364/OE.27.013516

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.

摘要

在本研究中，我们制造了一种温度响应型红外反射器，它通过改变对入射红外光的透射率来适应温度变化。该装置利用胆甾相液晶（CLC）的螺距随温度的变化，在特定波长范围内实现近红外光反射。此外，使用聚合物稳定胆甾相液晶（PSCLC）作为替代材料，以进一步优化器件性能。采用聚对苯二甲酸乙二酯（PET）作为基底材料，使反射器具有柔韧性。研究了反射器在不同弯曲角度下的光传输性能，未发现显著影响。建立了一个模拟太阳能装置，以研究CLC和PSCLC器件的温度调节效果。