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

Wang，Zhiyong1,2; Dong，Qingshun2; Yan，Ying1; Fang，Zikeng1; Mi，Guojun3; Pei，Mingzhu2; Wang，Shuhong2; Zhang，Linghui4; Liu，Jing4; Chen，Min5; Ma，Hongru2; Wang，Ruiting1,2; Zhang，Jie2; Cheng，Chun3; Shi，Yantao2

2023

10.1016/j.apmate.2023.100142

Advanced Powder Materials   Impact Factor & Quartile

2772-834X

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 AlO 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 AlO 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.

Al2O3 nanoparticles Perovskite solar cell Surface modify Ultra-flexible Wettability

English

Others

National Key Research and Development Program of China[2019YFA0709102];National Key Research and Development Program of China[2020YFA0714502];National Natural Science Foundation of China[22005043];National Natural Science Foundation of China[52272193];

2-s2.0-85164394094

Scopus

1.State Key Laboratory of High-performance Precision Manufacturing,School of Mechanical Engineering,Dalian University of Technology,Dalian,116024,China
2.State Key Laboratory of Fine Chemicals,School of Chemistry,Dalian University of Technology,Dalian,116024,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.School of Physics,Dalian University of Technology,Dalian,116024,China
5.School of Engineering,Brown University,Providence,02912,United States

Wang，Zhiyong,Dong，Qingshun,Yan，Ying,et al. Al2O3 nanoparticles as surface modifier enables deposition of high quality perovskite films for ultra-flexible photovoltaics[J]. Advanced Powder Materials,2023.

Wang，Zhiyong.,Dong，Qingshun.,Yan，Ying.,Fang，Zikeng.,Mi，Guojun.,...&Shi，Yantao.(2023).Al2O3 nanoparticles as surface modifier enables deposition of high quality perovskite films for ultra-flexible photovoltaics.Advanced Powder Materials.

Wang，Zhiyong,et al."Al2O3 nanoparticles as surface modifier enables deposition of high quality perovskite films for ultra-flexible photovoltaics".Advanced Powder Materials (2023).