Effects of polyethylene oxide particles on the photo-physical properties and stability of FA-rich perovskite solar cells

Richard K. Koech; Yusuf A. Olanrewaju; Reisya Ichwani; Moses Kigozi; Deborah O. Oyewole; Omolara V. Oyelade; Dahiru M. Sanni; Sharafadeen A. Adeniji; Erika Colin-Ulloa; Lyubov V. Titova; Julia L. Martin; Ronald L. Grimm; Abdulhakeem Bello; Oluwaseun K. Oyewole; Esidor Ntsoenzok; Winston O. Soboyejo

doi:10.1038/s41598-022-15923-y

Scientific Reports (Jul 2022)

Effects of polyethylene oxide particles on the photo-physical properties and stability of FA-rich perovskite solar cells

Richard K. Koech,
Yusuf A. Olanrewaju,
Reisya Ichwani,
Moses Kigozi,
Deborah O. Oyewole,
Omolara V. Oyelade,
Dahiru M. Sanni,
Sharafadeen A. Adeniji,
Erika Colin-Ulloa,
Lyubov V. Titova,
Julia L. Martin,
Ronald L. Grimm,
Abdulhakeem Bello,
Oluwaseun K. Oyewole,
Esidor Ntsoenzok,
Winston O. Soboyejo

Affiliations

Richard K. Koech: Department of Materials Science and Engineering, African University of Science and Technology
Yusuf A. Olanrewaju: Department of Materials Science and Engineering, African University of Science and Technology
Reisya Ichwani: Department of Mechanical Engineering, Worcester Polytechnic Institute
Moses Kigozi: Department of Materials Science and Engineering, African University of Science and Technology
Deborah O. Oyewole: Department of Mechanical Engineering, Worcester Polytechnic Institute
Omolara V. Oyelade: Department of Mechanical Engineering, Worcester Polytechnic Institute
Dahiru M. Sanni: Department of Theoretical and Applied Physics, African University of Science and Technology
Sharafadeen A. Adeniji: Department of Theoretical and Applied Physics, African University of Science and Technology
Erika Colin-Ulloa: Department of Physics, Worcester Polytechnic Institute
Lyubov V. Titova: Department of Physics, Worcester Polytechnic Institute
Julia L. Martin: Department of Chemistry and Biochemistry, Life Science and Engineering Center, Worcester Polytechnic Institute
Ronald L. Grimm: Department of Chemistry and Biochemistry, Life Science and Engineering Center, Worcester Polytechnic Institute
Abdulhakeem Bello: Department of Materials Science and Engineering, African University of Science and Technology
Oluwaseun K. Oyewole: Department of Mechanical Engineering, Worcester Polytechnic Institute
Esidor Ntsoenzok: CEMHTI-CNRS Site Cyclotron
Winston O. Soboyejo: Department of Mechanical Engineering, Worcester Polytechnic Institute

DOI: https://doi.org/10.1038/s41598-022-15923-y
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 12

Abstract

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Abstract In this paper, we use Polyethylene Oxide (PEO) particles to control the morphology of Formamidinium (FA)-rich perovskite films and achieve large grains with improved optoelectronic properties. Consequently, a planar perovskite solar cell (PSC) is fabricated with additions of 5 wt% of PEO, and the highest PCE of 18.03% was obtained. This solar cell is also shown to retain up to 80% of its initial PCE after about 140 h of storage under the ambient conditions (average relative humidity of 62.5 ± 3.25%) in an unencapsulated state. Furthermore, the steady-state PCE of the PEO-modified PSC device remained stable for long (over 2500 s) under continuous illumination. This addition of PEO particles is shown to enable the tuning of the optoelectronic properties of perovskite films, improvements in the overall photophysical properties of PSCs, and an increase in resistance to the degradation of PSCs.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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