Minimizing buried interfacial defects for efficient inverted perovskite solar cells

Shuo Zhang; Fangyuan Ye; Xiaoyu Wang; Rui Chen; Huidong Zhang; Liqing Zhan; Xianyuan Jiang; Yawen Li; Xiaoyu Ji; Shuaijun Liu; Miaojie Yu; Furong Yu; Yilin Zhang; Ruihan Wu; Zonghao Liu; Zhijun Ning; Dieter Neher; Liyuan Han; Yuze Lin; He Tian; Wei Chen; Martin Stolterfoht; Lijun Zhang; Wei-Hong Zhu; Yongzhen Wu

doi:10.1126/science.adg3755

Minimizing buried interfacial defects for efficient inverted perovskite solar cells

Science. 2023 Apr 28;380(6643):404-409. doi: 10.1126/science.adg3755. Epub 2023 Apr 27.

Authors

Shuo Zhang^#¹, Fangyuan Ye^#^{1

2}, Xiaoyu Wang^#³, Rui Chen^#⁴, Huidong Zhang¹, Liqing Zhan¹, Xianyuan Jiang⁵, Yawen Li⁶, Xiaoyu Ji¹, Shuaijun Liu¹, Miaojie Yu¹, Furong Yu¹, Yilin Zhang³, Ruihan Wu¹, Zonghao Liu⁴, Zhijun Ning⁵, Dieter Neher², Liyuan Han⁷, Yuze Lin⁶, He Tian¹, Wei Chen⁴, Martin Stolterfoht², Lijun Zhang³, Wei-Hong Zhu¹, Yongzhen Wu¹

Affiliations

¹ Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China.
² Institute of Physics and Astronomy, University of Potsdam, D-14476 Potsdam-Golm, Germany.
³ State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, School College of Materials Science and Engineering, Jilin University, Changchun, China.
⁴ Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China.
⁵ School of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
⁶ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
⁷ State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, China.

^# Contributed equally.

PMID: 37104579
DOI: 10.1126/science.adg3755

Abstract

Controlling the perovskite morphology and defects at the buried perovskite-substrate interface is challenging for inverted perovskite solar cells. In this work, we report an amphiphilic molecular hole transporter, (2-(4-(bis(4-methoxyphenyl)amino)phenyl)-1-cyanovinyl)phosphonic acid, that features a multifunctional cyanovinyl phosphonic acid group and forms a superwetting underlayer for perovskite deposition, which enables high-quality perovskite films with minimized defects at the buried interface. The resulting perovskite film has a photoluminescence quantum yield of 17% and a Shockley-Read-Hall lifetime of nearly 7 microseconds and achieved a certified power conversion efficiency (PCE) of 25.4% with an open-circuit voltage of 1.21 volts and a fill factor of 84.7%. In addition, 1-square centimeter cells and 10-square centimeter minimodules show PCEs of 23.4 and 22.0%, respectively. Encapsulated modules exhibited high stability under both operational and damp heat test conditions.