Phase‐Stable Wide‐Bandgap Perovskites for Four‐Terminal Perovskite/Silicon Tandem Solar Cells with Over 30% Efficiency (Small 38/2022)

作者：Yao Yuxin; Hang Pengjie; Li Biao; Hu Zechen; Kan Chenxia; Xie Jiangsheng; Wang Ying; Zhang Yiqiang; Yang Deren; Yu Xuegong

来源：Small, 2022, 18(38).

DOI：10.1002/SMLL.202270204

• ammonium diethyldithiocarbamate
• four‐terminal tandem solar cells
• phase stable
• wide‐bandgap perovskite

Tandem Solar Cells(#br)Light‐induced phase segregation is the chief culprit for the open‐circuit voltage deficit and photo‐instability in mix‐halide perovskite solar cells with wide‐bandgap. In article number 2203319, Xuegong Yu and co‐workers report a highly efficient and photo‐stable wide‐bandgap perovskite solar cell with a top‐ranking open‐circuit voltage of 1.24 V realized by defects management in perovskite films via precursor solution engineering utilizing a low‐cost additive of ammonium diethyldithiocarbamate. Integrated with a bottom silicon solar cell, a four‐terminal tandem solar cell with a power conversion efficiency of 30.24% is achieved, which is one of the highest efficiencies in four‐terminal perovskite/silicon tandem solar cells.

• 单位
  浙江大学; 硅材料国家重点实验室; 郑州大学