15:30 〜 15:45 ▼ [15p-A401-9] Dual TiO2 Electron Transport Layers Formed by Magnetron Sputtering and Spin Coating Methods for Planar Perovskite Solar Cells 〇(M2)Ali Raza1、Nuth Sophal1、Koji Tomita1、Tetsuya Kaneko1、Masao Isomura1 (1.Tokai Univ.)