Enhancing the energy-storage performance of lead-free dielectric ceramics is essential for developing environmentally sustainable capacitors and power devices. NaNbO$_3$, a promising perovskite, exhibits considerable potential for dielectric applications but is limited by poor densification and high dielectric loss. In this work, the effects of tantalum (Ta) doping at varying concentrations $\text{NaNb}_{1-x}\text{Ta}_x\text{O}_3$, with $x = 0.05, 0.10, \text{and } 0.15$, corresponding to 5%, 10%, and 15% Ta substitution on the crystal structure, microstructure, and electrical properties of NaNbO$_3$ ceramics were systematically investigated. X-ray diffraction (XRD) confirmed phase purity an... More >

This work reports the performance optimization of PTB7:PCBM-based inverted organic solar cells (IOSCs) using the Organic and Hybrid Materials Nano (OghmaNano) simulator. A comprehensive study was carried out by varying the key performance parameters, such as active layer thickness (AL), charge transport layers (CTLs), operating temperature, charge carrier mobilities(CCMs), and incident light intensity. The results showed that the carrier concentrations and mobilities (e.g, electron mobility ($\mu_e$) and hole mobility ($\mu$h)) significantly changed with operating temperature (280 to 400 K), affecting the power conversion efficiency (PCE). Additionally, changing light intensity from 0.1 to 1... More >

In this work, the effect of additives (Al\(_2\)O\(_3\), ZrO\(_2\), and Nb\(_2\)O\(_5\)) on the dielectric and ferroelectric properties of Sr\(_{0.7}\)Bi\(_{0.2}\)TiO\(_3\) (SBT) relaxor ferroelectric was investigated. Relative density of SBT was estimated to be above 95%. XRD analysis confirmed the formation of cubic perovskite structure for all the samples. \(P_{\text{max}}\) of SBT decreased by adding ZrO\(_2\), Nb\(_2\)O\(_5\) and Al\(_2\)O\(_3\), while remnant polarization (\(P_r\)) and coercive field (\(E_c\)) increased. For pure SBT, the breakdown strength was 75 kV which increased to 90 kV for ZrO\(_2\)- and Al\(_2\)O\(_3\)-added SBT but decreased to 60 kV when the additive was Nb\(_2... More >

The growing demand for sustainable materials in green flexible electronics calls for alternatives to petroleum-derived polymers, which are non-biodegradable, resource-intensive, and environmentally harmful. This study presents the fabrication of bio-composite films using water hyacinth derived cellulose nanofibrils (CNF), blended with polyethylene oxide (PEO) and reinforced by functional nanofillers such as barium titanate (BTO), silver nanowires (SNP), and carbon nanotubes (CNT). The nanocomposite films (NCF) were produced by solution casting and systematically characterized for morphological, dielectric, mechanical, thermal, and chemical properties. Scanning electron microscopy analysis re... More >

Presents the inaugural editorial for the Journal of Advanced Electronic Materials. More >