Slot-die coating large-area formamidinium-cesium perovskite film for efficient and stable parallel solar module

Zhichun Yang; Wenjun Zhang; Shaohang Wu; Hongmei Zhu; Zonghao Liu; Zhiyang Liu; Zhaoyi Jiang; Rui Chen; Jing Zhou; Qian Lu; Zewen Xiao; Lei Shi; Han Chen; Luis K Ono; Shasha Zhang; Yiqiang Zhang; Yabing Qi; Liyuan Han; Wei Chen

doi:10.1126/sciadv.abg3749

Slot-die coating large-area formamidinium-cesium perovskite film for efficient and stable parallel solar module

Sci Adv. 2021 Apr 30;7(18):eabg3749. doi: 10.1126/sciadv.abg3749. Print 2021 Apr.

Authors

Zhichun Yang¹, Wenjun Zhang^{1

2}, Shaohang Wu^{1

3}, Hongmei Zhu¹, Zonghao Liu⁴, Zhiyang Liu¹, Zhaoyi Jiang¹, Rui Chen¹, Jing Zhou¹, Qian Lu¹, Zewen Xiao¹, Lei Shi², Han Chen⁵, Luis K Ono⁶, Shasha Zhang⁷, Yiqiang Zhang⁷, Yabing Qi⁶, Liyuan Han⁸, Wei Chen⁴

Affiliations

¹ Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
² Hangzhou Zhongneng Photoelectricity Technology Co., Ltd., Hangzhou 310018, China.
³ Institute of New Energy Technology College of Information Science and Technology, Jinan University, Guangzhou 510632, China.
⁴ Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan 430074, China. liuzonghao@hust.edu.cn han.liyuan@sjtu.edu.cn wnlochenwei@hust.edu.cn.
⁵ State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
⁶ Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan.
⁷ School of Materials Science and Engineering and Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450001, China.
⁸ State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China. liuzonghao@hust.edu.cn han.liyuan@sjtu.edu.cn wnlochenwei@hust.edu.cn.

Abstract

Perovskite solar cells have emerged as one of the most promising thin-film photovoltaic (PV) technologies and have made a strong debut in the PV field. However, they still face difficulties with up-scaling to module-level devices and long-term stability issue. Here, we report the use of a room-temperature nonvolatile Lewis base additive, diphenyl sulfoxide(DPSO), in formamidinium-cesium (FACs) perovskite precursor solution to enhance the nucleation barrier and stabilize the wet precursor film for the scalable fabrication of uniform, large-area FACs perovskite films. With a parallel-interconnected module design, the resultant solar module realized a certified quasi-stabilized efficiency of 16.63% with an active area of 20.77 cm² The encapsulated modules maintained 97 and 95% of their initial efficiencies after 10,000 and 1187 hours under day/night cycling and 1-sun equivalent white-light light-emitting diode array illumination with maximum power point tracking at 50°C, respectively.

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