The undoped SrSiO3/SiO2 phosphors prepared by both co-precipitation and hydrothermal methods at different Sr/Si molar ratios are reported. Undoped and Mn doped BaAl2O4 phosphor synthesized using combustion method are ...

Supercapacitors are promising energy storage devices which fill the gap between conventional capacitors and batteries. They possess several advantages compared to the latter such as safe operation, superior capacitance ...