中国发明专利：一种光响应三稳态手性分子材料及其制备方法和应用

发明（设计）人：俞燕蕾，秦朗，韦嘉

申请人：复旦大学

专利号：ZL 201710000520.6

摘要：

本发明属于光响应材料技术领域，具体为一种光响应三稳态手性分子材料及其制备方法和应用。本发明提供的手性分子具有两个不同光响应性质的偶氮苯结构单元，在三种波长光的驱动下，能够分别形成三种不同的稳定构型。本发明的手性分子在溶液和液晶中均具有三稳态性质，同时在三种波长的驱动下可发生可逆变化。本发明的手性分子在液晶中溶解后，灌入平行取向的液晶盒中，利用手性分子三稳态的性质，可实现液晶盒反射光波段的分段调控，突破了原有双稳态手性分子单一调控波段的局限。本发明可应用于显示、传感器、防伪等众多领域。

Abstract：

The invention belongs to the technical field of photo-response materials, and particularly discloses a photo-response three-stable state chiral molecular material and a preparation method and application thereof. A chiral molecule provided by the invention is provided with two azobenzene structure units with different photo-response properties; and three different stable structures can be formed separately under the drive effects of light with three kinds of wavelengths. The chiral molecule has the three-stable state property in a solution and liquid crystals, and can reversibly change under the drive effects of three kinds of wavelengths. When the chiral molecule is dissolved into the liquid crystal and then filled into a liquid crystal box of parallel orientation, subsection control on a reflected light wave band of the liquid crystal box can be achieved by using the three-stable state property of the chiral molecule, so that the limitation of a single control wave band of the original bistable state chiral molecule is broken through. The photo-response three-stable state chiral molecular material can be applied to multiple fields such as display, sensors and anti-counterfeiting.