Fabrication of Planar Perovskite Solar Cells Using Ternary Metal Oxide Nanocomposite as Hole-Transporting Material

K. P. Muthukumaran, V. Arjun, A. Nithya, Sadhasivam Thangarasu (), Tae Hwan Oh () and S. Karuppuchamy ()
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K. P. Muthukumaran: Department of Energy Science, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
V. Arjun: Department of Energy Science, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
A. Nithya: Department of Energy Science, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
Sadhasivam Thangarasu: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Tae Hwan Oh: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
S. Karuppuchamy: Department of Energy Science, Alagappa University, Karaikudi 630 003, Tamil Nadu, India

Energies, 2023, vol. 16, issue 9, 1-15

Abstract: This work uses a hole-transporting copper cobaltite/copper oxide nanocomposite to fabricate carbon-based MAPbI 3 PSCs. The copper cobaltite/copper oxide HTM-based PSC results show the highest power conversion efficiency (PCE = 7.32%) compared with an HTM-free device. The highest photocurrent density (J sc = 15.17 mA/cm 2 ), open-circuit voltage (V oc = 0.82 V), and fill factor (FF = 0.59) are achieved for the PSC fabricated with hydrothermally synthesized copper cobaltite/copper oxide nanocomposites. Electrochemical impedance spectroscopy is used to analyze the charge transfer resistance (Rs) and the capacitive behavior of copper cobaltite/copper oxide nanocomposite. The maximum electron lifetime of 35.16 μs is witnessed for the PSCs fabricated with 3 mg mL −1 of copper cobaltite/copper oxide (H1). The efficiency of the copper cobaltite/copper oxide-based PSC remains unchanged, showing no further perovskite layer degradation.

Keywords: perovskite solar cells; copper cobaltite; hole-transporting material; nanocomposite; power conversion efficiency; degradation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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