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Advancements and Challenges of Bismuth Ferrite-Based Materials for Photovoltaic Devices: A Study on Pure, Doped, and Co-Doped Variants

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Abstract:

This study assesses the photovoltaic potential of pure Bismuth Ferrite (BiFeO₃) and its doped variants, specifically Samarium (Sm)-doped and Cobalt–Samarium (Co–Sm) co-doped BiFeO₃ nanoparticles. The materials were synthesized using sol-gel methods, followed by post-annealing to promote high crystallinity. A comprehensive characterization was performed to evaluate the structural, morphological, and optical properties utilizing X-ray diffraction (XRD), Field-Emission Scanning Electron Microscopy (FESEM), and UV-Vis spectroscopy. The findings indicate that doping and co-doping have a substantial influence on the optical bandgap, particle morphology, and crystallite dimensions. Sm and Co–Sm doping reduced the bandgap, enhancing visible-light absorption and solar energy-harvesting efficiency, whereas pure BiFeO₃ exhibited a bandgap of 2.03 eV. Electrical investigations further revealed greater charge separation, underscoring the superior charge-transport properties of the modified materials. The results indicate that doped BiFeO₃ systems hold potential as tunable multiferroic materials for advanced, high-efficiency solar applications.

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Periodical:

Advances in Science and Technology (Volume 175)

Pages:

11-16

DOI:

https://doi.org/10.4028/p-UE9yyx

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Online since:

May 2026

Authors:

M.M. Rhaman*, M.S. Islam, M.A. Islam

Keywords:

Bismuth Ferrite, Cobalt-Samarium Co-Doping, Energy Harvesting, Nanoparticles, Samarium Doping

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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