Structural and optoelectronic potential of Ag₂BiO₃-embedded red lead silver-bismuth borate glass-ceramics

Bhadrarao, D.; Brik, Mikhail G.; Pavić, Luka; Bafti, Arijeta; Pisk, Jana; Sekhar, A. Venkata; Venkatramaiah, N.; Kumar, V. Ravi; Raju, G. Naga; Veeraiah, N. (2025) Structural and optoelectronic potential of Ag₂BiO₃-embedded red lead silver-bismuth borate glass-ceramics. Journal of Molecular Structure, 1326 . ISSN 0022-2860

| Request a personal copy from author

Abstract

This study comprehensively examined the structural, optical, and dielectric properties of Pb3O4-Bi2O3-B2O3 glass-ceramics, doped with varying Ag2O concentrations. XRD and SEM analyses revealed the embedding of noncentrosymmetric Ag2BiO3 ferroelectric crystals (0.6-1.0 mu m), whose properties are modeled using GGA and LDA approximations within the Pnn2 space group, aligning with experimental data. XPS highlights the presence of Ag+/Ag0 and Bi3+/Bi5+ states, while FTIR spectroscopy indicates increasing structural disorder with up to 0.2 mol % Ag2O. Optical absorption identifies Ag+-Ag0 pairs, and dielectric measurements show an increase in permittivity and a.c. conductivity, with impedance decreasing up to 0.2 mol% Ag2O. Notably, 0.2 mol% Ag2O optimizes structural reorganization and dielectric performance, enhancing the material's suitability for spin-orbitronics, optoelectronics, and solid-state batteries. The findings establish these glass-ceramics as next-generation materials for advanced technological applications.

Item Type:	Article
Uncontrolled Keywords:	Pb3O4-Bi2O3-B2O3 glass system; Silver ions; Ag2BiO3 crystal phase; Optical and dielectric properties; A.C. conductivity
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry
Depositing User:	Luka Pavić
Date Deposited:	14 Jan 2026 10:30
URI:	http://fulir.irb.hr/id/eprint/10385
DOI:	10.1016/j.molstruc.2024.141053

Actions (login required)

View Item