Volume 11 Issue 3 ( September 2024)

Bismuth ferrite (BiFeO₃) is a single-phase multiferroic material demonstrating magnetic (antiferromagnetic) and ferroelectric natures at room temperature. Here, BiFeO₃ and BiFeO₃Bi_1-xPr_xFe_1-yMn_yO₃, where (x, y= 0%-20%), have been synthesized by means of Chemical Solution Deposition (CSD) technique and grown on quartz substrates via spin coater. This research aimed to identify the effects of mole variation of Praseodymium (Pr) and Manganese (Mn) dopants on the crystal structure and optical and electrical characteristics of BiFeO₃ and BiFeO₃Bi_1-xPr_xFe_1-yMn_yO₃. According to the X-ray diffraction (XRD) data, adding (Pr, Mn) dopants into BiFeO₃ caused a shift in the diffraction angle toward smaller angles. As a result, the unit cell volume, lattice parameters, and crystal size reduced with the increasing number of (Pr, Mr). Next, according to the UV-Vis Spectrophotometer data, the addition of (Pr, Mn) dopants could decrease the transmittance and increase the absorbance, so the refractive index decreased while the light dispersion increased. Moreover, the increase in the (Pr, Mn) concentration ratio could enhance I-V characteristics of (Pr, Mn) co- doped BiFeO₃. Hence, it could be concluded that adding more (Pr, Mn) concentration ratios improved the crystal structure and optical and electrical characteristics of (Pr, Mn) co-doped BiFeO₃.

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