Structural, dielectric, electrical, and energy storage properties of Mn‐doped Ba 0.55 Sr 0.45 TiO 3 ceramics
Source abstract
Abstract
Abstract A conventional solid‐state reaction route was utilized for the fabrication of Ba 0.55 Sr 0.45 Ti 1− x Mn x O 3 ( x = .004, .006, .008, .01, and .015) ceramics. X‐ray diffraction (XRD) diffractograms revealed pseudo‐cubic structural symmetry with a single phase. The scanning electron microscope (SEM) images revealed fine grain morphology for x = .006, while an obvious increase in grain size was detected at x > .006. A high‐energy storage density ( W s ) of 2.47 J cm −3 and a recoverable energy density ( W rec ) of 1.36 J cm −3 at an applied electric field of 220 kV cm −1 were achieved for x = .006. An impedance spectroscopic study showed the electrical response relationship with microstructure. The observed two semicircles in Nyquist plots are an indication of the contribution of grains (bulk) and grain boundaries as a resistive medium for conduction of charge carriers, which led to enhanced the capability in capacitor applications.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Dielectric properties of ceramics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics University of Lakki Marwat Lakki Marwat Khyber Pakhtunkhwa Pakistan
Laboratory for Research in Advanced Materials, Department of Physics University of Science & Technology Bannu, Department of Physics Bannu Khyber Pakhtunkhwa Pakistan
Materials Research Institute The Pennsylvania State University University Park Pennsylvania USA
Center for Materials Science Islamia College Peshawar Peshawar Khyber Pakhtunkhwa Pakistan
Department of Physics University of Lahore Lahore Pakistan
Department of Physics University of Peshawar Peshawar Khyber Pakhtunkhwa Pakistan
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