Dielectric and electrical properties of La@NiO SNPs for high-performance optoelectronic applications

摘要: Abstract A successful flash combustion synthesis of NiO spherical nanoparticles with various contents lanthanum (La) doping (La@NiO SNPs) remarkably enhanced dielectric and electrical properties are reported. Single phase has been confirmed through X-ray diffraction FT-Raman spectroscopic analysis. Increasing La content in reduced the crystallite size by 341% to 6.65 nm from 22.70 nm. The composition elements final product was assessed via EDX Moreover, monophasic La@NiO SNPs reduction observed using field emission scanning electron microscopy (FESEM). red shift optical energy gaps (3.52–3.26 eV) increasing pure 10 wt%. Capacitance (109–964 PF), impedance (9.41 × 104–1.67 × 104 kΩ), constant (100–967), loss (335–10666), conductivity (4–5 S/m) values were improved doping. current (I)–voltage (V) characteristics NPs performed under biased voltage ±20 V. Current noticed range (3.81 × 10−4–9.91 × 10−3 amp) at pure, 1.0, 3.0, 5.0, 10 wt% NPs. Enhancements as-synthesized make them suitable for optoelectronics uses.