Preparation of bismuth ferrite as photo-supercapacitive electrode

Abstract

In this work, we report a novel concept of photo-assisted charging supercapacitive electrode of bismuth ferrite (BFO). The thin film layer of bismuth ferrite electrode is synthesized by electrodeposition technique. The effect of bismuth (III) nitrate/iron (III) nitrate ratio on the capacitive behavior of BFO electrode is investigated. FE-SEM demonstrates the morphology development of flake nanostructure of BFO at the equivalent ratio. The photo-supercapacitive electrode can deliver the highest specific capacitance of 220.50 F g-1 at 10 mV sec-1 under LED light irradiation which is higher than that obtained from dark conditions. This photo active layer can integrate function with the capacitive layer inducing photo-charging mechanism, thus it has great potential of this material electrode for photo-assisted charging supercapacitors application.