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

被引：0

作者：

Tianhao Wu

Xiao Liu

Xinhui Luo

Hiroshi Segawa

Guoqing Tong

Yiqiang Zhang

Luis K. Ono

Yabing Qi

Liyuan Han

机构：

[1] Shanghai Jiao Tong University,State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering

[2] University of Tokyo,Special Division of Environmental and Energy Science, Komaba Organization for Educational Excellence (KOMEX), College of Arts and Sciences

[3] Okinawa Institute of Science and Technology Graduate University (OIST),Energy Materials and Surface Sciences Unit (EMSSU)

[4] Zhengzhou University,School of Materials Science and Engineering, Henan Institute of Advanced Technology

来源：

Nano-Micro Letters | 2022年 / 14卷

关键词：

Gradient FASnI; absorber; Built-in electric field; Bulk charge recombination; Lead-free perovskite solar cell;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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 (FASnI3) perovskite solar cells with a vertical Sn2+ gradient and an enhanced electric field.The solar cell with a heterogeneous FASnI3 absorber is ultrastable, maintaining over 13% efficiency after operation under 1-sun illumination for 1,000 h in air.

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