Heterogeneous FASnI3 Absorber with Enhanced Electric Field for High-Performance Lead-Free Perovskite Solar Cells

• Published in: Nano-micro letters Vol. 14; no. 1; pp. 99 - 14
• Main Authors: Wu, Tianhao, Liu, Xiao, Luo, Xinhui, Segawa, Hiroshi, Tong, Guoqing, Zhang, Yiqiang, Ono, Luis K., Qi, Yabing, Han, Liyuan
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 08.04.2022; Springer Nature B.V; Springer Singapore; SpringerOpen
• Subjects: Absorbers; Built-in electric field; Bulk charge recombination; Efficiency; Electric fields; Engineering; Gradient FASnI3 absorber; Illumination; Lead free; Lead-free perovskite solar cell; Lewis base; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Open circuit voltage; Perovskite Solar Cells; Perovskites; Photoelectrons; Photovoltaic cells; Recrystallization; Solar cells; Tin; absorber; Bulk charge recombination; Gradient FASnI; Built-in electric field; Lead-free perovskite solar cell

Highlights A novel strategy to further improve the efficiency of lead-free tin perovskite solar cells by carefully controlling the built-in electric field in the absorber is described. A promising efficiency of 13.82% was obtained based on the formamidinium tin iodide (FASnI 3 ) perovskite solar cel...