11:45 〜 12:00 ▲ [19a-E101-11] Photophysics of Perovskite Solar Cells based on Sn-TiO2 Electron Extraction Layer Revealed by Time-Resolved Photoluminescence Spectroscopy 〇Yinghan Liao1、Mingchung Wu1 (1.Chang Gung Univ.)