Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping
The films of polypyrrole (PPy) doped with Cs2AgBiBr6, lead-free halide double perovskite (LFHDP), have been synthesized through a sol–gel method. The X-ray diffraction (XRD) analysis showed the effective doping of PPy, which resulted in larger grain sizes (34 nm) and enhanced crystallinity. Optical...
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Elsevier
2025-01-01
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| author | Ihtisham-ul-Haq M.I. Khan Ali Mujtaba Asad Ullah Badriah Ali Muhammad Atif M.S. Hasan |
| author_facet | Ihtisham-ul-Haq M.I. Khan Ali Mujtaba Asad Ullah Badriah Ali Muhammad Atif M.S. Hasan |
| author_sort | Ihtisham-ul-Haq |
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| description | The films of polypyrrole (PPy) doped with Cs2AgBiBr6, lead-free halide double perovskite (LFHDP), have been synthesized through a sol–gel method. The X-ray diffraction (XRD) analysis showed the effective doping of PPy, which resulted in larger grain sizes (34 nm) and enhanced crystallinity. Optical analysis revealed the absorption in the visible region and bandgap energy (Eg) is reduced from 1.89 eV to 1.85 eV with PPy doping. The high refractive index (2.77) and absorption in the visible region due to PPy doping make it suitable for solar cell applications. The solar cells of these films have been prepared and compared to their efficiency. The structure of the solar cell is Au/Spiro-OMeTAD/Cs2AgBiBr6/TiO2/FTO/glass. Photovoltaic parameters of Cs2AgBiBr6 solar cells with PPy doping have high open-circuit voltage (Voc) of 0.91 V, fill factor (FF) of 0.72, short-circuit current (Jsc) of 5.37 mA/cm2, and efficiency (η) of 3.51 %. This study underscores the potential of PPy-doped Cs2AgBiBr6 as a promising material for efficient solar energy conversion, with implications for future research in enhancing efficiency. |
| format | Article |
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| institution | Kabale University |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| spelling | doaj-art-57d7a929422243988fe5c2c997f051262025-01-29T05:00:52ZengElsevierResults in Chemistry2211-71562025-01-0113101999Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping Ihtisham-ul-Haq0M.I. Khan1Ali Mujtaba2Asad Ullah3Badriah Ali4Muhammad Atif5M.S. Hasan6Department of Optics and Optical Engineering, School of Physics, University of Science and Technology of China, Hefei 230026, ChinaDepartment of Physics, The University of Lahore, 53700, Pakistan; Corresponding author.Department of Physics, The University of Lahore, 53700, PakistanDepartment of Physics, The University of Lahore, 53700, PakistanDepartment of Optics and Optical Engineering, School of Physics, University of Science and Technology of China, Hefei 230026, ChinaDepartment of Physics and Astronomy, College of Science, King Saud University, P O Box 2455, Riyadh 11451, Saudi ArabiaInstitute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, ChinaThe films of polypyrrole (PPy) doped with Cs2AgBiBr6, lead-free halide double perovskite (LFHDP), have been synthesized through a sol–gel method. The X-ray diffraction (XRD) analysis showed the effective doping of PPy, which resulted in larger grain sizes (34 nm) and enhanced crystallinity. Optical analysis revealed the absorption in the visible region and bandgap energy (Eg) is reduced from 1.89 eV to 1.85 eV with PPy doping. The high refractive index (2.77) and absorption in the visible region due to PPy doping make it suitable for solar cell applications. The solar cells of these films have been prepared and compared to their efficiency. The structure of the solar cell is Au/Spiro-OMeTAD/Cs2AgBiBr6/TiO2/FTO/glass. Photovoltaic parameters of Cs2AgBiBr6 solar cells with PPy doping have high open-circuit voltage (Voc) of 0.91 V, fill factor (FF) of 0.72, short-circuit current (Jsc) of 5.37 mA/cm2, and efficiency (η) of 3.51 %. This study underscores the potential of PPy-doped Cs2AgBiBr6 as a promising material for efficient solar energy conversion, with implications for future research in enhancing efficiency.http://www.sciencedirect.com/science/article/pii/S2211715624006957PolypyrroleCs2AgBiBr6DopingThin filmLead Free Double Perovskite Solar cell |
| spellingShingle | Ihtisham-ul-Haq M.I. Khan Ali Mujtaba Asad Ullah Badriah Ali Muhammad Atif M.S. Hasan Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping Results in Chemistry Polypyrrole Cs2AgBiBr6 Doping Thin film Lead Free Double Perovskite Solar cell |
| title | Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| title_full | Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| title_fullStr | Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| title_full_unstemmed | Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| title_short | Enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| title_sort | enhancing efficiency in double perovskite solar cells through bandgap reduction via organic polymer doping |
| topic | Polypyrrole Cs2AgBiBr6 Doping Thin film Lead Free Double Perovskite Solar cell |
| url | http://www.sciencedirect.com/science/article/pii/S2211715624006957 |
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