International Journal on Science and Technology

E-ISSN: 2229-7677   •   Impact Factor: 9.88

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 16 Issue 4 October-December 2025 Submit your research before last 3 days of December to publish your research paper in the issue of October-December.
Submit Research Paper Join as a Reviewer

Plagiarism is checked by the leading plagiarism checker TurnItIn

Call for Paper

Volume 16 Issue 4
October-December 2025

Submit your research paper

Indexing Partners
Academia Advanced Sciences Index Bielefeld Academic Search Engine CiteSeer DRJI Google Scholar Independent Search Engine & Directory Network ISI (International Scientific Indexing) Issuu Mendeley Research Networks
RefSeek ResearcherId - Thomson Reuters ResearchGate Scirus Scribd Semantic Scholar UTeM - Universiti Teknikal Malaysia Melaka Wiki for Call for Papers WorldCat Zenodo

Comparative Dielectric and Spectroscopic Analysis of Transition Metal-Doped PbO―Bi₂O₃―SiO₂: NiO/CoO Glass Systems

Author(s) Dr. Veti Prasad
Country India
Abstract This comprehensive study investigates the comparative dielectric and spectroscopic properties of PbO―Bi₂O₃―SiO₂ glass systems doped with transition metal oxides (NiO and CoO). Glass samples with compositions 50PbO―30Bi₂O₃―20SiO₂: xNiO/CoO (x = 0, 0.5, 1.0, 1.5 mol%) were synthesized using the conventional melt-quench technique. X-ray diffraction (XRD) analysis confirmed the amorphous nature of all prepared glasses. Fourier transform infrared (FTIR) spectroscopy revealed structural modifications in the glass network, with characteristic absorption bands corresponding to Si-O-Si stretching vibrations and metal-oxygen bonds. UV-visible spectroscopy demonstrated the presence of Ni²⁺ and Co²⁺ ions in both octahedral and tetrahedral coordination states. Dielectric measurements conducted over a frequency range of 100 Hz to 1 MHz and a temperature range of 303-523 K showed that dielectric constant and AC conductivity decrease with increasing transition metal oxide content, attributed to the incorporation of TM²⁺ ions into the glass network. The activation energy for AC conduction increased from 0.42 eV to 0.68 eV for NiO-doped glasses and from 0.45 eV to 0.71 eV for CoO-doped glasses. Complex impedance analysis revealed space charge polarization mechanisms. These findings suggest potential applications in electronic devices and radiation shielding materials.
Keywords Lead-bismuth-silicate glass; Transition metal doping; NiO; CoO; Dielectric properties; FTIR spectroscopy; AC conductivity; Impedance spectroscopy.
Field Physics
Published In Volume 16, Issue 4, October-December 2025
Published On 2025-11-07
DOI https://doi.org/10.71097/IJSAT.v16.i4.9387
Short DOI https://doi.org/g99qkf
View / Download PDF File

Share this


CrossRef

CrossRef DOI is assigned to each research paper published in our journal.

IJSAT DOI prefix is
10.71097/IJSAT

Downloads
Research Paper Format Copyright Permission Form and Undertaking Form Cover Page Vol 16 Isu 3Cover Page Vol 16 Isu 2Cover Page Vol 16 Isu 1

All research papers published on this website are licensed under Creative Commons Attribution-ShareAlike 4.0 International License, and all rights belong to their respective authors/researchers.

CC-BY-SA Open Access

About IJSAT
Fees & Payment
Current Issue
Publication Archive 		Submit Research Paper
Track Submission Status
Publication Guidelines
Publication Ethics
Peer Review & Plagiarism 		Join as a Reviewer
Editors & Reviewers
Reviewer Referral Program
Get Reviewer Membership Certi. 		Website/Journal Policies
Usage Policy
Content Policies
Privacy Policy
Contact Us Message on WhatsApp +91-9687-182-185 editor@ijsat.org