초록 |
Perovskite solar cells have recently risen to more than 25%. Will this efficiency continue to rise? The past, present and future of these perovskite solar cells will be discussed together. Our group has designed a new photovoltaic platform for efficient perovskite solar cells (PSCs). The performance has been remarkably increased to more than 20 % by introducing a mediator to retard the rapid crystallization between organic cations and PbI2, and manipulate the chemical composition of the perovskites via solvent engineering, intramolecular exchange process, and defect engineering, making these routs attractive for attaining low-cost and high-performance devices. In this presentation, I want to introduce the recent progress to improve the efficiency and long-term stability of PSCs, based on our results. |