1. Rising from the Ashes: Gaseous Therapy for Robust and Large-Area Perovskite Solar Cells
- Author
-
Hua Yu, Puan Lin, Wenfeng Zhang, Xiangqing Zhou, Tao Chen, Xu Liu, Yuelong Huang, Shenghou Zhou, Meng Zhang, Fang Wen, Zhu Ma, Zhang Haichuan, Liuwen Tian, and Yutong Jiang
- Subjects
Materials science ,Fabrication ,business.industry ,Photovoltaic system ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Maximum power point tracking ,0104 chemical sciences ,Optoelectronics ,General Materials Science ,Post treatment ,0210 nano-technology ,business ,Scaling ,Perovskite (structure) - Abstract
Scalable fabrication of perovskite solar cells (PSCs) with high reliability is one of the most pivotal concerns that must be addressed before they get into the photovoltaic (PV) market. Scaling large-area high-quality perovskite films is of great importance in this process. Here, gaseous therapy has been proposed for the post-treatment of perovskite films with high scalability and low cost. An inspiring evolvement from poor perovskite films to high quality ones is demonstrated under a joint treatment of methylamine gas and hot solvent vapors. The perovskite films are completely reconstructed and repaired regardless of the morphology of the original films. As a consequence, small-area (0.09 cm2) and large-area (4 cm2) PSCs based on the healed MAPbI3 films can afford J-V scanned efficiencies of 19.2 and 16.5% under a reverse sweep, respectively. Furthermore, stabilized power outputs of 18.5 and 15.2% are obtained from the small one and large one under continuous maximum power point tracking.
- Published
- 2020