[17a-P4-1~39] 12.3 Functional Materials and Novel Devices

△ [17a-P4-13] Comparison between Measured and Theoretical Surface Strains of Bending Flexible Film.

〇Ryo Taguchi¹, Motoyuki Fukuhara¹, Norihisa Akamatsu¹, Shigenori Fujikawa^1,2, Christopher Barrett^1,3, Atsushi Shishido^1,4 (1.Lab. Chem. & Life Sci., Tokyo Tech., 2.WPI-I2CNER, Kyushu Univ., 3.McGill Univ., 4.PRESTO, JST)

Keywords:Flexible film, Surface strain, Bending behavior

In recent years, flexible devices have been focused. Mechanistic understanding of flexible materials is indispensable for these developments. However, a method to analyze the deformation of a flexible material has not been established. Therefore, the deformation of flexible material is based on solid mechanical theory. Recently, we have developed a surface-labeled grating method that enables quantitative and microscopic deformation analysis of film surfaces. In this study, We performed a quantitative analysis of surface strain of bending flexible films, and compared the surface strain with that predicted by solid mechanical theory.