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Experimental findings and SCAPS-1D simulations for high-efficiency MAPbI3 perovskite solar cells beyond 31%
Optical and Quantum Electronics, Volume: 56, Issue: 8
Swansea University Author:
Karol Kalna
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DOI (Published version): 10.1007/s11082-024-07282-x
Abstract
The sequence and texture of methylammonium lead triiodide (MAPbI3) films, spin-coated by a one-step process, are analyzed using X-ray diffraction, atomic force microscopy, profilometry, and ultraviolet-visible spectroscopy to understand the film’s fundamental properties. The structural and optical r...
| Published in: | Optical and Quantum Electronics |
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| ISSN: | 1572-817X |
| Published: |
Springer Science and Business Media LLC
2024
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa70464 |
| Abstract: |
The sequence and texture of methylammonium lead triiodide (MAPbI3) films, spin-coated by a one-step process, are analyzed using X-ray diffraction, atomic force microscopy, profilometry, and ultraviolet-visible spectroscopy to understand the film’s fundamental properties. The structural and optical results demonstrate the formation of the MAPbI3 crystalline phase with a tetragonal crystal structure and a direct band gap of 1.53 eV, indicating its potential as an effective absorber of visible light. An n-i-p planar structure (ITO/SnO2/MAPbI3/Spiro-OMeTAD/Au) is then adopted for drift-diffusion SCAPS-1D simulations, considering realistic conditions such as resistance paths, reflection at the front contact (ITO), and various recombination mechanisms, including Shockley-Read-Hall (SRH), radiative, and Auger recombination. Based on optimal parameters and the investigation of novel alternative HTLs, back and front contacts, it is proposed that D-PBTTT-14, reduced graphene oxide (RGO), and Al-doped zinc oxide (AZO) could effectively replace traditional HTLs and electrodes such as Spiro-OMeTAD, Au, and ITO, respectively, thereby enhancing solar cell performance. The proposed solar cell structure (AZO/SnO2/MAPbI3/D-PBTTT-14/RGO) demonstrates an impressive efficiency of 28.39%. |
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| Keywords: |
MAPbI3 perovskite; Solar cells; SCAPS-1D; Efficiency |
| College: |
Faculty of Science and Engineering |
| Issue: |
8 |

