Structural, dielectric, electrical, and energy storage properties of Mn-doped Ba0.55Sr0.45TiO3 ceramics

Ihsan Ullah, Maqbool Ur Rehman, Abdul Manan, Michael T. Lanagan, Raj Wali Khan, Atta Ullah, Shah Wali Ullah, Muhammad Uzair

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A conventional solid-state reaction route was utilized for the fabrication of Ba0.55Sr0.45Ti1−xMnxO3 (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 (Ws) of 2.47 J cm−3 and a recoverable energy density (Wrec) 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.

Original languageEnglish (US)
Pages (from-to)3413-3421
Number of pages9
JournalInternational Journal of Applied Ceramic Technology
Volume21
Issue number5
DOIs
StatePublished - Sep 1 2024

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

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