Large-Sized High-Efficiency Fiber Perovskite Solar Cells Fabricated by Automatic Thin-Film Coating on Curved Surfaces

Qi Qi; Zhiguang Liu; Zhuang Zuo; Zongyang Peng; Yongping Fu; Shaocong Hou; Dechun Zou

doi:10.1007/s42765-023-00292-6

Advanced Fiber Materials ›› 2023, Vol. 5 ›› Issue (5) : 1799 -1809. DOI: 10.1007/s42765-023-00292-6

Research Article

Large-Sized High-Efficiency Fiber Perovskite Solar Cells Fabricated by Automatic Thin-Film Coating on Curved Surfaces

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¹Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, 100871, Beijing, China

²School of Electrical Engineering and Automation, Wuhan University, 430072, Wuhan, China

^g dczou@pku.edu.cn

Qi Qi

received her B.S. degree in 2019 from Zhejiang University. She is a Ph.D. candidate of Zou Lab at Peking University. Her main research interest is design of fiber-shaped perovskite solar cells.

Zhiguang Liu

received his B.S. degree in 2015 from Jiangxi Science and Technology Normal University University. He is a co-worker of Zou Lab at Peking University. His main research interest is preparation of fiber-shaped perovskite solar cells.

Zhuang Zuo

received his B.S. degree in 2019 from Shandong University. He is a Ph.D. candidate of Zou Lab at Peking University. His main research interest is preparing perovskite film by magnetron sputtering.

Zongyang Peng

received his B.S. degree in 2020 from Peking University. He is a Ph.D. candidate of Zou Lab at Peking University. His main research interest is design of vapor deposited perovskite solar cells.

Yongping Fu

is an Assistant Professor of Chemistry at Peking University. He got a Ph.D. in chemistry from University of Wisconsin−Madison in 2018. His current research interests are to search for new organic–inorganic hybrid materials, to understand their structure-property relationships and photophysics, and to develop applications for polaritonic and quantum devices.

Shaocong Hou

earned his Ph.D. degree from Peking University in 2014, and then worked for the University of Cambridge (2014–2016), Harvard University (2016–2017) and the University of Michigan (2018–2020). He then joined Wuhan University as a full professor. His research interests span from fundamental understanding of charge, photon and exciton behaviors to developing next-generation intelligent materials, devices and systems.

Dechun Zou

got his PhD degree from Kyushu University in 1990. Then he worked at Mitsubishi Petrochemicals and Casio Computer Co. (1998–2001). He was an associate professor at Kyushu University. Now he is a professor at Peking University. His research interests include light-emitting and photovoltaic materials and devices, and related device physics, as well as new process technologies for device fabrication.

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Abstract

Perovskite solar cells in a fiber format have great potential for wearable electronics due to their excellent flexibility, efficient light harvesting, and potentially high power conversion efficiency (PCE). However, the fabrication of large-sized fiber perovskite solar cells (FPSCs) while maintaining high efficiency remains a major challenge because of the difficulty in the formation of uniform crystalline perovskite films on highly curved surfaces. Here, we report a scale-up automatic approach for the fabrication of large-sized FPSCs via sequential coating of active layers on fiber substrates and posttreatment of perovskite films. We focus on understanding the perovskite film formation process on fibers and manage to control the film thickness, morphology, and crystallinity by adjusting the coating speed, precursor solution aging time, and posttreatment. As a result, a 20.0-cm-long FPSC with a PCE of 7.63% is achieved, and this length is almost ten times longer than those of the previously reported FPSCs. Our work represents a breakthrough in fabricating large-sized high-efficiency FPSCs, which will ultimately lead to practical applications of FPSCs.

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Qi Qi, Zhiguang Liu, Zhuang Zuo, Zongyang Peng, Yongping Fu, Shaocong Hou, Dechun Zou. Large-Sized High-Efficiency Fiber Perovskite Solar Cells Fabricated by Automatic Thin-Film Coating on Curved Surfaces. Advanced Fiber Materials, 2023, 5(5): 1799-1809 DOI:10.1007/s42765-023-00292-6