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Volume 18
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10.3390/ma18071430
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Retraction of Materials 2022, 15(15), 5216.
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Retraction

RETRACTED: Khan et al. Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216

by
Muhammad I. Khan
1,*,
Sumra Yasmin
1,
Norah Alwadai
2,*,
Muhammad Irfan
1,
Ikram-ul-Haq
1,
Hind Albalawi
2,
Aljawhara H. Almuqrin
2,
Maha M. Almoneef
2 and
Munawar Iqbal
3,*
1
Department of Physics, The University of Lahore, Lahore 53700, Pakistan
2
Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
3
Department of Chemistry, The University of Lahore, Lahore 53700, Pakistan
*
Authors to whom correspondence should be addressed.
Materials 2025, 18(7), 1430; https://doi.org/10.3390/ma18071430
Submission received: 24 July 2024 / Accepted: 25 July 2024 / Published: 24 March 2025
Versions Notes
Materials retracts the article, “Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells” [1], cited above.
Following publication, concerns were brought to the attention of the publisher regarding to the validity of the XRD data presented in this article [1].
Adhering to our complaints procedure, an investigation was conducted by the Editorial Office and Editorial Board. While the authors fully cooperated with the Editorial Office during the investigation, they were unable to satisfactorily explain the presence of a number of significant anomalies within the raw XRD data. As a result, the Editorial Board and Editor-in-Chief were unable to confirm the reliability of the findings and subsequently decided to retract this paper as per MDPI’s retraction policy (https://www.mdpi.com/ethics#_bookmark30) and in line with the Committee on Publication Ethics retraction guidelines (https://publicationethics.org/retraction-guidelines).
This retraction was approved by the Editor-in-Chief of the journal Materials.
The authors did not agree to this retraction.

Reference

  1. Khan, M.I.; Yasmin, S.; Alwadai, N.; Irfan, M.; Ikram-ul-Haq; Albalawi, H.; Almuqrin, A.H.; Almoneef, M.M.; Iqbal, M. RETRACTED: Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216. [Google Scholar] [CrossRef] [PubMed]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

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MDPI and ACS Style

Khan, M.I.; Yasmin, S.; Alwadai, N.; Irfan, M.; Ikram-ul-Haq; Albalawi, H.; Almuqrin, A.H.; Almoneef, M.M.; Iqbal, M. RETRACTED: Khan et al. Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216. Materials 2025, 18, 1430. https://doi.org/10.3390/ma18071430

AMA Style

Khan MI, Yasmin S, Alwadai N, Irfan M, Ikram-ul-Haq, Albalawi H, Almuqrin AH, Almoneef MM, Iqbal M. RETRACTED: Khan et al. Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216. Materials. 2025; 18(7):1430. https://doi.org/10.3390/ma18071430

Chicago/Turabian Style

Khan, Muhammad I., Sumra Yasmin, Norah Alwadai, Muhammad Irfan, Ikram-ul-Haq, Hind Albalawi, Aljawhara H. Almuqrin, Maha M. Almoneef, and Munawar Iqbal. 2025. "RETRACTED: Khan et al. Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216" Materials 18, no. 7: 1430. https://doi.org/10.3390/ma18071430

APA Style

Khan, M. I., Yasmin, S., Alwadai, N., Irfan, M., Ikram-ul-Haq, Albalawi, H., Almuqrin, A. H., Almoneef, M. M., & Iqbal, M. (2025). RETRACTED: Khan et al. Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells. Materials 2022, 15, 5216. Materials, 18(7), 1430. https://doi.org/10.3390/ma18071430

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