Semi-Transparent Perovskite Solar Cells with Wide Bandgap for Sustainable Urban Planning and Transportation
Jun Ryu a, Saemon Yoon a, SungWon Cho a, Dong-Won Kang a b
a Department of Smart Cities, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
b Department of Energy Systems Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
Tokyo, Japan, 2024 January 21st - 23rd
Organizers: Qing Shen and James Ryan
Poster, Jun Ryu, 087
Publication date: 18th October 2023

With energy issues gaining global attention, building-integrated solar cells (BIPV) and vehicle-integrated solar cells (VIPV) show immense promise in meeting the demand for energy-efficient urban planning and transportation. However, conventional solar cells face challenges in being applied to BIPV and VIPV due to aesthetic concerns. To address this issue, semi-transparent perovskite solar cells can be utilized for windows in buildings or vehicles without compromising aesthetics. This study introduces a groundbreaking exploration of semi-transparent solar cells based on FAPbBrxCl3-x compositions (x=2, 1.5, and 1), featuring wide bandgaps. The composites exhibit bandgap values of 2.46 eV (x=2), 2.6 eV (x=1.5), and 2.7 eV (x=1), respectively. Notably, devices constructed with the x=1.5 composition achieved unprecedented results, boasting efficiencies of 2.7%. Furthermore, semi-transparent devices demonstrated extremely high transmittance in the wavelength region above 480 nm, with an average visible transmittance between 380 nm and 780 nm of approximately 70%. These research findings lay the foundation for the commercialization of semi-transparent perovskite solar cells, presenting innovative possibilities for a greener and more environmentally conscious future.

The present research was supported by the National Research Foundation of Korea (NRF) funded by the Korea government (MSIT) (NRF - 2021R1A2C4002045, RS-2023-00217270, RS-2023-00212744, 2023K2A9A2A08000151).

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