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Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO2 composite nanofibers

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  • Patil, Jyoti V.
  • Mali, Sawanta S.
  • Patil, Akhilesh P.
  • Patil, Pramod S.
  • Hong, Chang Kook

Abstract

In this investigation, the electrospun reduced graphene oxide-titanium oxide composite nanofibers as an electron transporting materials have been employed for the perovskite solar cells. The synthesized electron transporting materials have been used for the fabrication of mixed-cation lead mixed-halide (FAPbI3)0.85(MAPbBr3)0.15 perovskite solar cells. The influence of reduced graphene oxide on titanium oxide nanofibers and their morphological and electronic properties have been investigated in detail. The optimized device having FTO/Bl-TiO2/rGO4–TiO2/(FAPbI3)0.85(MAPbBr3)0.15/spiro-MeOTAD/Au configuration exhibited a η = 17.66% power conversion efficiency with an open circuit voltage of 1.070 V, short circuit current density of 22.16 mAcm−2 and fill factor of 0.754. This obtained efficiency is much higher than that of mesoporous-titanium oxide (14.39%), pristine-titanium oxide nanofibers (15.82%) and other reduced graphene oxide-titanium oxide composite nanofibers based electron transporting materials.

Suggested Citation

  • Patil, Jyoti V. & Mali, Sawanta S. & Patil, Akhilesh P. & Patil, Pramod S. & Hong, Chang Kook, 2019. "Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO2 composite nanofibers," Energy, Elsevier, vol. 189(C).
    • Handle: RePEc:eee:energy:v:189:y:2019:i:c:s0360544219320912
    DOI: 10.1016/j.energy.2019.116396
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    Cited by:

    1. Lee, Dong-Gun & Pandey, Padmini & Parida, Bhaskar & Ryu, Jun & Cho, SungWon & Kim, Jae-Kwang & Kang, Dong-Won, 2022. "Improving inorganic perovskite photovoltaic performance via organic cation addition for efficient solar energy utilization," Energy, Elsevier, vol. 257(C).
    2. Xinchen Dai & Pramod Koshy & Charles Christopher Sorrell & Jongchul Lim & Jae Sung Yun, 2020. "Focussed Review of Utilization of Graphene-Based Materials in Electron Transport Layer in Halide Perovskite Solar Cells: Materials-Based Issues," Energies, MDPI, vol. 13(23), pages 1-24, December.

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