Key Laboratory of Organic Photoelectronic and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, PR China.
Langmuir. 2011 Feb 15;27(4):1505-9. doi: 10.1021/la1037124. Epub 2010 Nov 30.
Liquid-crystal elastomers together with nematic liquid crystals have been used as inverse opal materials to fabricate thermoresponsive photonic crystal directly. In the vicinity of the phase-transition point of the mixture, the photonic band gaps of such inverse opal films exhibited a strong temperature dependence. As the molar ratio of liquid-crystal elastomers and nematic liquid crystals changed, the character of their PBGs also changed with increasing temperature. Such a temperature-tuning effect in the photonic band gap should be of great interest in thermal switches and thermal sensors.
液晶弹性体与向列相液晶一起被用作反蛋白石材料，以直接制备热敏光子晶体。在混合物的相变点附近，这种反蛋白石薄膜的光子带隙表现出强烈的温度依赖性。随着液晶弹性体和向列相液晶的摩尔比的变化，其 PBG 的特性也随温度的升高而变化。这种光子带隙中的温度调谐效应在热开关和热传感器中应该是非常有趣的。
