Al2O3 nanoparticles as surface modifier enables deposition of high quality perovskite films for ultra-flexible photovoltaics

Zhiyong Wang; Qingshun Dong; Ying Yan; Zikeng Fang; Guojun Mi; Mingzhu Pei; Shuhong Wang; Linghui Zhang; Jing Liu; Min Chen; Hongru Ma; Ruiting Wang; Jie Zhang; Chun Cheng; Yantao Shi

Advanced Powder Materials (Feb 2024)

Al2O3 nanoparticles as surface modifier enables deposition of high quality perovskite films for ultra-flexible photovoltaics

Zhiyong Wang,
Qingshun Dong,
Ying Yan,
Zikeng Fang,
Guojun Mi,
Mingzhu Pei,
Shuhong Wang,
Linghui Zhang,
Jing Liu,
Min Chen,
Hongru Ma,
Ruiting Wang,
Jie Zhang,
Chun Cheng,
Yantao Shi

Affiliations

Zhiyong Wang: State Key Laboratory of High-performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China; State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Qingshun Dong: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China; Corresponding author.
Ying Yan: State Key Laboratory of High-performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China; Corresponding author.
Zikeng Fang: State Key Laboratory of High-performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
Guojun Mi: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Mingzhu Pei: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Shuhong Wang: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Linghui Zhang: School of Physics, Dalian University of Technology, Dalian 116024, China
Jing Liu: School of Physics, Dalian University of Technology, Dalian 116024, China
Min Chen: School of Engineering, Brown University, Providence, RI 02912, USA
Hongru Ma: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Ruiting Wang: State Key Laboratory of High-performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China; State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Jie Zhang: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China
Chun Cheng: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Yantao Shi: State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, China; Corresponding author.

Journal volume & issue: Vol. 3, no. 1
p. 100142

Abstract

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Advanced photovoltaics, such as ultra-flexible perovskite solar cells (UF-PSCs), which are known for their lightweight design and high power-to-mass ratio, have been a long-standing goal that we, as humans, have continuously pursued. Unlike normal PSCs fabricated on rigid substrates, producing high-efficiency UF-PSCs remains a challenge due to the difficulty in achieving full coverage and minimizing defects of metal halide perovskite (MHP) films. In this study, we utilized Al2O3 nanoparticles (NPs) as an inorganic surface modifier to enhance the wettability and reduce the roughness of poly-bis(4-phenyl) (2,4,6-trimethylphenyl) amine simultaneously. This approach proves essentials in fabricating UF-PSCs, enabling the deposition of uniform and dense MHP films with full coverage and fewer defects. We systematically investigated the effect of Al2O3 NPs on film formation, combining simulation with experiments. Our strategy not only significantly increases the power conversion efficiency (PCE) from 11.96% to 16.33%, but also promotes reproducibility by effectively addressing the short circuit issue commonly encountered in UF-PSCs. Additionally, our UF-PSCs demonstrates good mechanical stability, maintaining 98.6% and 79.0% of their initial PCEs after 10,000 bending cycles with radii of 1.0 and 0.5 mm, respectively.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

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