Volume 6, Issue 7 2200134
Research Article

Scalable Growth of Stable Wide-Bandgap Perovskite towards Large-Scale Tandem Photovoltaics

Congcong Tian

Congcong Tian

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, 528216 P. R. China

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Xiaofeng Gao

Xiaofeng Gao

International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Jing Li

Jing Li

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Junye Pan

Junye Pan

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Guomu Yu

Guomu Yu

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Bo Huang

Bo Huang

Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, 528216 P. R. China

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Yongtao Wen

Yongtao Wen

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Hao Zhu

Hao Zhu

International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Tongle Bu

Corresponding Author

Tongle Bu

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

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Yi-Bing Cheng

Yi-Bing Cheng

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, 528216 P. R. China

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Fuzhi Huang

Corresponding Author

Fuzhi Huang

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 P. R. China

Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, 528216 P. R. China

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First published: 20 April 2022
Citations: 6

Abstract

Upscaling and stabilizing efficient wide-bandgap perovskite solar cells (PSCs) are critical for the commercialization of tandem photovoltaics. Herein, solvent engineering is applied for scalable deposition of wide-bandgap (≈1.72 eV) perovskite by the introduction of N-methyl-2-pyrrolidone (NMP) additives, which enables compact and phase-stable FA0.83Cs0.17Pb(I0.7Br0.3)3 perovskite even without the use of antisolvent. By further passivation with a 2-thiophenemethylammonium bromide (2-ThMABr)-based quasi-2D perovskite (n = 2) on the surface of 3D perovskite, a champion power conversion efficiency (PCE) of 19.46% with a higher open-circuit voltage of 1.219 V for a small-sized wide-bandgap PSC is achieved. It also exhibits excellent long-term stability, maintaining 93% of its initial PCE after 2000 h storage in the air without encapsulation. In addition, this wide-bandgap perovskite is also easy to be upscaled via a blade-coating strategy, which demonstrates high PCEs of 16.07% and 13.03% with active areas of 46.5 and 123.0 cm2, respectively. Furthermore, the application of this wide-bandgap perovskite for four-terminal (4-T) perovskite/silicon (Si) tandem solar cells also demonstrates high PCEs of 23.85% and 19.51% with active areas of 0.16 and 1.0 cm2. The work demonstrates a great potential toward large-area efficient and stable wide-bandgap PSCs and perovskite/Si tandem cells.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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