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Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na$_{0.5}$Bi$_{0.5}$TiO$_{3}$ Based Ceramics
Research Article  ·  Published: 10 July 2026
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Journal of Advanced Electronic Materials
Volume 2, Issue 2, 2026: 69-81
Research Article Open Access

Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na$_{0.5}$Bi$_{0.5}$TiO$_{3}$ Based Ceramics

by
Aamir Jalil Aamir Jalil 1
Shah Faisal Shah Faisal 2
Abdul Manan Abdul Manan 1 * ORCID
Imran Ullah Imran Ullah 1
Safeer Ahmad Safeer Ahmad 3
Ameer Ullah Ameer Ullah 1
1 Laboratory for Research in Advanced Materials, Department of Physics, University of Science & Technology Bannu, Bannu 28100, Pakistan
2 Department of Chemical Sciences, University of Science & Technology Bannu, Bannu 28100, Pakistan
3 Center for Materials Science, Islamia College Peshawar, Peshawar 25120, Pakistan
* Corresponding Author: Abdul Manan, [email protected]
Volume 2, Issue 2
Volume 2, Issue 2 2026
Received: 24 May 2026 Accepted: 29 June 2026 Published: 10 July 2026 CrossMark
Download PDF 3.04 MB Cite Metrics
DOI: 10.62762/JAEM.2026.170619
ARK: ark:/57805/jaem.2026.170619

Article Information

Published in Journal of Advanced Electronic Materials
Volume/Issue Volume 2, Issue 2, 2026
Pages 69-81

Abstract

In the present study, Na$_{0.329}$Bi$_{0.329}$Ba$_{0.042}$Sr$_{0.30}$TiO$_3$ (NBBST) and its solid solutions with Nd(Mg$_{0.5}$Ti$_{0.5}$)O$_3$ (NMT), Nd(Mg$_{2/3}$Nb$_{1/3}$)O$_3$ (NMN), and Nd(Zn$_{2/3}$Nb$_{1/3}$)O$_3$ (NZN) were synthesized and investigated. The phase composition, microstructure, dielectric properties, and impedance characteristics were analyzed for their optimized dense sintered forms. X-ray diffraction (XRD) confirmed the formation of a single-phase perovskite structure in all compositions within the detection limit. All ceramics exhibited dense microstructures; however, the doped samples showed a reduced average grain size compared to pure NBBST. Among the compositions studied, the 0.98NBBST-0.02NZN solid solution demonstrated superior dielectric and electrical performance. This composition exhibited a low electrical conductivity (${\sim}3.98 \times 10^{-7}\ \mathrm{S\ cm^{-1}}$ at $600{^\circ}\mathrm{C}$ and at a frequency of $100\ \mathrm{Hz}$), low dielectric loss ($\tan\delta < 0.05$), and a high dielectric constant ($\varepsilon_r \approx 2500$), with excellent temperature stability of capacitance from below room temperature up to $324{^\circ}\mathrm{C}$. Additionally, the Cole-Cole plot of the 0.98NBBST-0.02NZN ceramic revealed a higher resistance at $600{^\circ}\mathrm{C}$ compared to the other investigated compositions.

Graphical Abstract

Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na$_{0.5}$Bi$_{0.5}$TiO$_{3}$ Based Ceramics

Keywords

dielectrics impedance spectroscopy electrical conductivity

Data Availability Statement

Data will be made available on request.

Funding

This work was supported by the National Research Program for Universities (NRPU) of the Higher Education Commission (HEC), Islamabad, Pakistan under Grant 20-17351/NRPU/R&D/HEC/2021.

Conflicts of Interest

The authors declare no conflicts of interest.

AI Use Statement

The authors declare that no generative AI was used in the preparation of this manuscript.

Ethical Approval and Consent to Participate

Not applicable.

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APA Style
Jalil, A., Faisal, S., Manan, A., Ullah, I., Ahmad, S., & Ullah, A. (2026). Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na0.5Bi0.5TiO3 Based Ceramics. Journal of Advanced Electronic Materials, 2(3), 69-81. https://doi.org/10.62762/JAEM.2026.170619
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TY  - JOUR
AU  - Jalil, Aamir
AU  - Faisal, Shah
AU  - Manan, Abdul
AU  - Ullah, Imran
AU  - Ahmad, Safeer
AU  - Ullah, Ameer
PY  - 2026
DA  - 2026/07/10
TI  - Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na$_{0.5}$Bi$_{0.5}$TiO$_{3}$ Based Ceramics
JO  - Journal of Advanced Electronic Materials
T2  - Journal of Advanced Electronic Materials
JF  - Journal of Advanced Electronic Materials
VL  - 2
IS  - 2
SP  - 69
EP  - 81
DO  - 10.62762/JAEM.2026.170619
UR  - https://www.icck.org/article/abs/JAEM.2026.170619
KW  - dielectrics
KW  - impedance spectroscopy
KW  - electrical conductivity
AB  - In the present study, Na$_{0.329}$Bi$_{0.329}$Ba$_{0.042}$Sr$_{0.30}$TiO$_3$ (NBBST) and its solid solutions with Nd(Mg$_{0.5}$Ti$_{0.5}$)O$_3$ (NMT), Nd(Mg$_{2/3}$Nb$_{1/3}$)O$_3$ (NMN), and Nd(Zn$_{2/3}$Nb$_{1/3}$)O$_3$ (NZN) were synthesized and investigated. The phase composition, microstructure, dielectric properties, and impedance characteristics were analyzed for their optimized dense sintered forms. X-ray diffraction (XRD) confirmed the formation of a single-phase perovskite structure in all compositions within the detection limit. All ceramics exhibited dense microstructures; however, the doped samples showed a reduced average grain size compared to pure NBBST. Among the compositions studied, the 0.98NBBST-0.02NZN solid solution demonstrated superior dielectric and electrical performance. This composition exhibited a low electrical conductivity (${\sim}3.98 \times 10^{-7}\ \mathrm{S\ cm^{-1}}$ at $600{^\circ}\mathrm{C}$ and at a frequency of $100\ \mathrm{Hz}$), low dielectric loss ($\tan\delta < 0.05$), and a high dielectric constant ($\varepsilon_r \approx 2500$), with excellent temperature stability of capacitance from below room temperature up to $324{^\circ}\mathrm{C}$. Additionally, the Cole-Cole plot of the 0.98NBBST-0.02NZN ceramic revealed a higher resistance at $600{^\circ}\mathrm{C}$ compared to the other investigated compositions.
SN  - 3070-5649
PB  - Institute of Central Computation and Knowledge
LA  - English
ER  -
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@article{Jalil2026Improved,
  author = {Aamir Jalil and Shah Faisal and Abdul Manan and Imran Ullah and Safeer Ahmad and Ameer Ullah},
  title = {Improved Thermal Stability of Dielectric and Electrical Properties of Chemically Modified Na\$\_{0.5}\$Bi\$\_{0.5}\$TiO\$\_{3}\$ Based Ceramics},
  journal = {Journal of Advanced Electronic Materials},
  year = {2026},
  volume = {2},
  number = {2},
  pages = {69-81},
  doi = {10.62762/JAEM.2026.170619},
  url = {https://www.icck.org/article/abs/JAEM.2026.170619},
  abstract = {In the present study, Na\$\_{0.329}\$Bi\$\_{0.329}\$Ba\$\_{0.042}\$Sr\$\_{0.30}\$TiO\$\_3\$ (NBBST) and its solid solutions with Nd(Mg\$\_{0.5}\$Ti\$\_{0.5}\$)O\$\_3\$ (NMT), Nd(Mg\$\_{2/3}\$Nb\$\_{1/3}\$)O\$\_3\$ (NMN), and Nd(Zn\$\_{2/3}\$Nb\$\_{1/3}\$)O\$\_3\$ (NZN) were synthesized and investigated. The phase composition, microstructure, dielectric properties, and impedance characteristics were analyzed for their optimized dense sintered forms. X-ray diffraction (XRD) confirmed the formation of a single-phase perovskite structure in all compositions within the detection limit. All ceramics exhibited dense microstructures; however, the doped samples showed a reduced average grain size compared to pure NBBST. Among the compositions studied, the 0.98NBBST-0.02NZN solid solution demonstrated superior dielectric and electrical performance. This composition exhibited a low electrical conductivity (\${\sim}3.98 \times 10^{-7}\ \mathrm{S\ cm^{-1}}\$ at \$600{^\circ}\mathrm{C}\$ and at a frequency of \$100\ \mathrm{Hz}\$), low dielectric loss (\$\tan\delta < 0.05\$), and a high dielectric constant (\$\varepsilon\_r \approx 2500\$), with excellent temperature stability of capacitance from below room temperature up to \$324{^\circ}\mathrm{C}\$. Additionally, the Cole-Cole plot of the 0.98NBBST-0.02NZN ceramic revealed a higher resistance at \$600{^\circ}\mathrm{C}\$ compared to the other investigated compositions.},
  keywords = {dielectrics, impedance spectroscopy, electrical conductivity},
  issn = {3070-5649},
  publisher = {Institute of Central Computation and Knowledge}
}

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CC BY Copyright © 2026 by the Author(s). Published by Institute of Central Computation and Knowledge. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
Journal of Advanced Electronic Materials
Journal of Advanced Electronic Materials
ISSN: 3070-5649 (Online)
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