Abstract
This study investigates the potential of Cesium−formamidinium-based (CsyFA1−yPb(IxBr1−x)3) perovskite materials as promising candidates for efficient and stable perovskite solar cells (PSCs), that can be tailored for indoor applications. These materials offer the unique advantage of simultaneously stabilizing photoactive compositional phase transitions and enhancing thermal stability, making them well-suited for indoor environments. The optical band gaps of Cesium−formamidinium, ranging from 1.5 to 1.8 eV, can be engineered to align with the spectrum of light sources commonly used indoors. Therefore, this study directs into the design and simulation of Cesium-Formamidinium-Based PSCs, with a specific emphasis on optimizing their performance under indoor LED illumination. Parameter manipulation related to the Hole Transport Layer (HTL) and Electron Transport Layer (ETL) is utilized to establish optimal band alignment in order to reduce recombination losses and boost power conversion efficiency. A co-design approach between the ETL and HTL is introduced, enabling precise engineering of interfaces, and optimizing charge transport and collection efficiency. This research presents an optimal design with a conduction band minimum (VBM) energy level of 4.05 eV for the ETL and a valence band maximum (VBM) energy level of 5.15 eV for the HTL, resulting in a power conversion efficiency (PCE) of 25.00%, and an open-circuit voltage (Voc) of 0.939 V.
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This research has been funded by Scientific Research Deanship at University of Ha’il–Saudi Arabia through project number RG-23 074.
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This research has been funded by Scientific Research Deanship at University of Ha’il–Saudi Arabia through project number RG-23 074. University of Ha’il, RG-23 074.
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Marwa S. Salem, Ahmed Shaker, and Mohamed Abouelatta wrote the main manuscript text. Marwa S. Salem, Ahmed Shaker, Walid Zein, Arwa N. Aledaily, and Muath Alkadi performed the simulation and prepared the figures. Abdelhalim Zekry and Christian Gontrand performed conceptualization and supervision. All authors shared in methodology, and validation. All authors reviewed the manuscript.
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Salem, M.S., Shaker, A., Abouelatta, M. et al. Wide-bandgap Cesium-Formamidinium-Based Perovskite for Possible Indoor Applications: TCAD Simulation Study. Opt Quant Electron 56, 1054 (2024). https://doi.org/10.1007/s11082-024-07000-7
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DOI: https://doi.org/10.1007/s11082-024-07000-7