Structural and electrical properties in ZnO-BaO-based varistors by co doping: the role of oxygen vacancies and barrier height modulation

Investigating the impact of Sm3+/Ni2+ co-doping on the dielectric behaviour of CaCu3Ti4O12 ceramics for microelectronic applications

Ga-induced defect engineering and charge transport mechanisms in ZnO ceramic materials

Ga-doped ZnO (G3ZO) ceramics were successfully synthesized and their structural, electrical, dielectric, impedance, and relaxation properties were investigated to understand the effect of Ga incorporation on charge transport. X-ray diffraction confirmed the hexagonal wurtzite structure without detectable secondary ph...

Oxygen-Vacancy-Controlled Band-Gap Engineering in Fe/Co Co-doped La-Modified Bismuth Titanate: Integrated Experimental and First-Principles Analysis

Layered Aurivillius ferroelectrics offer a route to multifunctional band-gap engineering, yet the role of oxygen vacancies in band-edge reconstruction in Fe/Co-modified compositions remains poorly resolved. Here, oxygen annealing of Bi3.25La0.75Ti2.60(Fe0.50,Co0.50)0.40O12 (BLFC4) ceramics widens the optical band gap b...

Synergistic Defect Chemistry and Strain Engineering via Coating Layer Design for Enhanced Electrical Property of Nano-BaTiO3 Sintered in Reducing Atmosphere.

The semiconducting phenomenon of BaTiO3 induced by sintering in reducing atmospheres is the key bottleneck restricting its application in high-performance base metal electrode multilayer ceramic capacitors (BME-MLCCs). In this work, a surface modification strategy was innovatively developed via defect regulation to imp...

Dopant and frequency-dependent evolution of dielectric properties in Sn‒Ba‒Cu‒O ceramic system at room temperature

The Influence of Dopants on the Structural and Optical Properties of SnO2 Thin Films Deposited by PLD for Gas Sensor Application

This study investigated the effects of different dopants (Mn, Cu, and Sb) on the characterization of SnO₂ thin films prepared by the pulsed laser deposition (PLD) technique. The pure and doped powders were prepared by the sol-gel technique and sintered at 600 оC for two hours. Structural analysis revealed a tetragonal...