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Investigation of the Cobalt-Additive Role in Improving the Performance of Formamidium Lead Triiodide Based Solar Cells

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Abstract

Solar cell devices are one of the most promising technologies for generating green energy. Forefront perovskite-based solar cells have increased worldwide hope for solving global warming issues. Tight bandgap formamidinium lead iodide (TB-FAPbI3) perovskite as an active layer to absorb sunlight along with a desired electron transport layer (ETL) can produce efficient and stable perovskite solar cells (PSCs). Here, TB-FAPbI3 with tin oxide (SnO2) as an ETL was employed to fabricate PSCs. These PSCs recorded a low champion efficiency of 18.35%. A cobalt-doped SnO2 layer was designed to increase the efficiency of TB-FAPbI3 solar cells. The modified SnO2 boosted the solar cell efficiency to 20.10% due to the improved conductivity of the ETL and increased charge transfer phenomena in the PSCs. From one side, electron transfer is facilitated at the ETL/perovskite interface. On another side, the reduced surface defects on the fabricated perovskite layer over the modified ETL diminish charge traps in the solar cell. In addition, cobalt doping does not hinder the light transmission from the SnO2 into the perovskite layer. The modified SnO2 assists in the formation of a more compact TB-FAPbI3 layer and promotes the stability properties of PSCs.

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Acknowledgements

The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for partially funding this work through the Research Group Program under grant number RGP. 2/195/43.

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Authors and Affiliations

  1. Solar Lab, GLA University, Mathura, 281406, India

    Anjan Kumar

  2. Department of Radiology and Ultrasonography Techniques, College of Medical Techniques, Al-Farahidi University, Baghdad, 10011, Iraq

    Ali K. Al-Mousoi

  3. Faculty of Pharmacy, Middle East University, Amman, Jordan

    Mohamed J. Saadh

  4. University of Warith Al-Anbiyaa, Karbala, 56001, Iraq

    Mustafa K. A. Mohammed

  5. Department of Physics, Malla Reddy Engineering College (A), Maisammaguda, Dhulapally, Secunderabad, India

    G. V. S. S. Sarma

  6. Department of Physics, College of Science, King Khalid University, P.O. Box: 960, Abha 61421, Saudi Arabia

    Nafis Ahmad

  7. Department of Physics, Dr CV Raman University Kargi, Bilaspur, CG, India

    Ratnesh Tiwari

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  1. Anjan Kumar
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Kumar, A., Al-Mousoi, A.K., Saadh, M.J. et al. Investigation of the Cobalt-Additive Role in Improving the Performance of Formamidium Lead Triiodide Based Solar Cells. Electron. Mater. Lett. 19, 471–482 (2023). https://doi.org/10.1007/s13391-023-00417-4

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