Frontiers of Optoelectronics, Volume. 13, Issue 3, 272(2020)

Surfactant-assisted doctor-blading-printed FAPbBr3 films for efficient semitransparent perovskite solar cells

Hangkai YING1, Yifan LIU1, Yuxi DOU1, Jibo ZHANG1, Zhenli WU1, Qi ZHANG2,3, Yi-Bing CHENG1,4, and Jie ZHONG1、*
Author Affiliations
  • 1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • 2School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
  • 3School of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield, Bedfordshire, MK43 0AL, UK
  • 4Department of Materials Science and Engineering, Monash University, VIC 3800, Australia
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    Organic–inorganic hybrid perovskite solar cells have generated wide interest due to the rapid development of their photovoltaic conversion efficiencies. However, the majority of the reported devices have been fabricated via spin coating with a device area of <1 cm2. In this study, we fabricated a wide-bandgap formamidinium lead bromide (FAPbBr3) film using a cost-effective, high-yielding doctor-blade-coating process. The effects of different surfactants, such as l-α-phosphatidylcholine, polyoxyethylene sorbitan monooleate, sodium lauryl sulfonate, and hexadecyl trimethyl ammonium bromide, were studied during the printing process. Accompanying the optimization of the blading temperature, crystal sizes of over 10 mm and large-area perovskite films of 5 cm × 5 cm were obtained using this method. The printed FAPbBr3 solar cells exhibited a short-circuit current density of 8.22 mA/cm2, an open-circuit voltage of 1.175 V, and an efficiency of 7.29%. Subsequently, we replaced the gold with silver nanowires as the top electrode to prepare a semitransparent perovskite solar cell with an average transmittance (400–800 nm) of 25.42%, achieving a highpower efficiency of 5.11%. This study demonstrates efficient doctor-blading printing for preparing large-area FAPbBr3 films that possess high potential for applications in building integrated photovoltaics.

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    Hangkai YING, Yifan LIU, Yuxi DOU, Jibo ZHANG, Zhenli WU, Qi ZHANG, Yi-Bing CHENG, Jie ZHONG. Surfactant-assisted doctor-blading-printed FAPbBr3 films for efficient semitransparent perovskite solar cells[J]. Frontiers of Optoelectronics, 2020, 13(3): 272

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: May. 1, 2020

    Accepted: Jun. 10, 2020

    Published Online: Nov. 25, 2020

    The Author Email: ZHONG Jie (jie.zhong@whut.edu.cn)

    DOI:10.1007/s12200-020-1031-1

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