Chinese invention patent: Photo-response three-stable state chiral molecular material and preparation method and application thereof

Inventor: Yanlei Yu, Lang Qin, Jia Wei

Applicant: Fudan University

Patent No.: ZL 201710000520.6

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.