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https://doi.org/10.1063/1.2779095

has been cited by the following article:

• TITLE: Tuning of Optical Properties via Annealing of Bismuth Ferrite (BiFeO3) Thin Films

  AUTHORS: Harish Kumar Meena, Khushbu Meena, Reena Verma, Karishma Jain, Sushil Kumar Jain, Kedar Babu Sharma, Balram Tripathi

  KEYWORDS: Optical Properties, Annealing, Ferroelectrics, Photo Luminescence, BFO Thin Films

  JOURNAL NAME: Open Journal of Composite Materials, Vol.14 No.3, July 15, 2024

  ABSTRACT: In this study we are reporting annealing induced optical properties of bismuth ferrite (BiFeO3) thin films deposited on glass substrate via spin coating at 5000 rpm. The structural, optical and surface morphology of BiFeO3 (BFO) thin films have been studied via X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Optical absorption (UV-Vis) and Photoluminescence (PL) spectroscopy. XRD spectra confirm annealing induced phase formation of BiFeO3 possessing a rhombohedral R3c structure. The films are dense and without cracks, although the presence of porosity in BFO/glass was observed. Moreover, optical absorption spectra indicate annealing induced effect on the energy band structure in comparison to pristine BiFeO3. It is observed that annealing effect shows an intense shift in the UV-Vis spectra as diffuse absorption together with the variation in the optical band gap. The evaluated optical band gap values are approximately equal to the bulk band gap value of BiFeO3.