[22a-E307-1~11] 12.3 Functional Materials and Novel Devices

△ [22a-E307-5] Suppression of surface strain in bending triple-layer polymer films.

〇Takuya Yamoto¹, Yuhao Zhang¹, Masayuki Kishino¹, Ryo Taguchi¹, Norihisa Akamatsu¹, Atsushi Shishido¹ (1.Tokyo Inst of Tech.)

Keywords:Strain suppression, Bending, Triple-layer film

riple-layer films, which comprise a soft layer sandwiched between two hard layers, has received much attention to enhance bending durability of flexible devices. Bending of the triple-layer films induces shear deformation of the soft layer, resulting in suppression of their surface strain. In this study, we fabricated triple-layer films composed of hard and soft layers with various mechanical properties and then evaluated their surface strain.