Multiple Dynamic Hydrogen Bonding Networks Boost the Mechanical Stability of Flexible Perovskite Solar Cells

Zhu, Siyuan1,2,3; Jin, Xi3,4,5; Tan, Wenyan3,4,5; Zhang, Yu3,4,5; Zhao, Guijie1; Wang, Xinyue1; Yang, Yuxuan6; Zhou, Chao3,7; Tang, Zhaoheng3,8; Wu, Xiaoxue7; Gong, Xueyuan9; Zhu, Cheng2; Chen, Qi2; Liu, Zonghao10; Song, Peng1; Li, Minghua11; Hu, Jinsong9; Liang, Qijie3; Ding, Yong1; Jiang, Yan2

2024-07-01

10.1002/adfm.202408487

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

["Flexible perovskite solar cells often experience constant or cyclic bending during their service life. Catastrophic failure of devices may occur due to the crack of polycrystalline perovskite films and delamination at the perovskite and the substrate interfaces, posing a significant stability concern. Here, a multiple dynamic hydrogen bonding polymer network is developed to enhance the mechanical strength of flexible perovskite solar cells in two ways. The main chain of poly(acrylic acid) decreases the mismatch of the coefficient of thermal expansion between the perovskite and the substrate by 16.7% through its flexibility and spatial occupation. The dopamine branch chains provide multiple dynamic hydrogen bonding sites, which contribute to increased energy dissipation upon stress deformation and reduce Young's modulus of perovskite by 54.3%. The inverted flexible perovskite solar cells achieve a champion power conversion efficiency of 23.02% and retain 81.3% of the initial PCE over 2000 h under continuous 1-sun equivalent illumination. Moreover, devices show excellent mechanical stability by remaining 90.2% of the original value after 5000 bending cycles.","A multiple dynamic hydrogen bonding network (i.e., dopamine-grafted polyacrylic acid (PAA-DA)) is developed. The mechanical stability of flexible perovskite solar cells (f-PSCs) is enhanced through simultaneously tuning the two essential parameters, namely Young's modulus and thermal expansion coefficient. The f-PSCs show a high efficiency of 23.02%, long-term operational stability, and superior mechanical stability. image"]

flexible mechanical stability perovskite polymer solar cells

SCI ; EI

英语

其他

National Key Research and Development Program of China[2020YFB0408002] ; National Natural Science Foundation of China["22279083","5220332","52202183"] ; Basic Scientific Research Program of Educational Department of Liaoning Province[JYTMS20230772] ; Guangdong Basic and Applied Basic Research Foundation[2022B1515120006]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001279839700001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Liaoning Univ, Dept Phys, Shenyang 110036, Peoples R China
2.Beijing Inst Technol, Dept Sch Mat Sci & Engn, Beijing 100081, Peoples R China
3.Songshan Lake Mat Lab, Dongguan 523429, Peoples R China
4.South China Normal Univ, Coll Biophoton, Guangzhou 510631, Peoples R China
5.South China Normal Univ, Guangdong Prov Key Lab Laser Life Sci, Guangzhou 510631, Peoples R China
6.Tianjin Univ, Sch Chem Engn & Technol, 135 Yaguan Rd, Tianjin 300350, Peoples R China
7.Guangzhou Univ, Sch Phys & Mat Sci, Guangzhou 510006, Peoples R China
8.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
9.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci BNLMS, Beijing 100190, Peoples R China
10.Huazhong Univ Sci & Technol HUST, Wuhan Natl Lab Optoelect WNLO, Wuhan 430074, Peoples R China
11.Beijing Univ Chem Technol, Coll Chem Engn, Coll Mat Sci & Engn, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

Zhu, Siyuan,Jin, Xi,Tan, Wenyan,et al. Multiple Dynamic Hydrogen Bonding Networks Boost the Mechanical Stability of Flexible Perovskite Solar Cells[J]. ADVANCED FUNCTIONAL MATERIALS,2024.

Zhu, Siyuan.,Jin, Xi.,Tan, Wenyan.,Zhang, Yu.,Zhao, Guijie.,...&Jiang, Yan.(2024).Multiple Dynamic Hydrogen Bonding Networks Boost the Mechanical Stability of Flexible Perovskite Solar Cells.ADVANCED FUNCTIONAL MATERIALS.

Zhu, Siyuan,et al."Multiple Dynamic Hydrogen Bonding Networks Boost the Mechanical Stability of Flexible Perovskite Solar Cells".ADVANCED FUNCTIONAL MATERIALS (2024).