[20p-PA2-1~35] 12.3 Functional Materials and Novel Devices

[20p-PA2-21] Effect of Polarized Light Irradiation on Alignment of Azobenzene Based on Photopolymerization

〇Tomoaki Matsuda¹, Aizawa Miho¹, Norihisa Akamatsu¹, Atsushi Shishido¹ (1.Lab. for Chem. & Life Sci., Tokyo Tech.)

Keywords:Photopolymerization, Molecular alignment, Polarized light

It is important to control molecular alignment over large areas in production of functional films. In recent years, a photoalignment process has been attracted much attention because spatially selective molecular alignment can be induced in a non-contact process. We have developed a new photoalignment method that uses the molecular motion accompanied by photopolymerization as the driving force of alignment. In this study, we doped a small amount of azobenzene, which changes their alignment depending on the direction of linearly polarized light, and investigated the effect of polarized light irradiation on molecular alignment.