鈣鈦礦中離子遷移的實時觀測及其對LED及電池器件穩定性的影響研究Real-time Observation of Ion Migration in Perovskite LED and Its Influence on Device Stability李澄廈門大學微電子與集成電路系副主任 副教授LI ChengAssociate Professor, Department of Microelectronics and Integrated Circuits, Xiamen University