Kang Yifei, Wang Anran, Li Rong, Song Yilong, Wang Xinjiang, Li Hanming, Xu Weiqing, Zhang Lijun, Dong Qingfeng
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China.
Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun, 130012, China.
Adv Mater. 2022 Aug;34(32):e2203166. doi: 10.1002/adma.202203166. Epub 2022 Jul 10.
A highly crystalline tempered-glass-like perovskite grain structure with compressed surface lattice realized by a thermal-shocking fabrication is shown. The strained perovskite grain structure is stabilized by Cl -reinforcing surface lattice and shows enhanced bonding energy and ionic activation temperature, which contributes to hysteresis-free operation of perovskite solar cells (PSCs) at much higher temperature up to 363 K in thermal-shocking-processed MAPbCl I (T-MPI). The PSCs can be fabricated by a high-speed fully air process without post-annealing based on the scalable bar-coating technique. Both high efficiency and stability are achieved in T-MPI PSC with a power conversion efficiency (PCE) up to 22.99% and long-term operational stability with T lifetime exceeding 4000 h.
展示了一种通过热冲击制备实现的具有压缩表面晶格的高度结晶的类钢化玻璃钙钛矿晶粒结构。应变钙钛矿晶粒结构通过Cl -增强表面晶格得以稳定，并表现出增强的键合能和离子活化温度，这有助于钙钛矿太阳能电池（PSC）在热冲击处理的MAPbClI（T-MPI）中高达363 K的更高温度下无滞后运行。基于可扩展的条形涂布技术，PSC可以通过高速全空气工艺制造，无需退火后处理。T-MPI PSC实现了高效率和稳定性，功率转换效率（PCE）高达22.99%，并且具有超过4000小时的T寿命的长期运行稳定性。
