Abstract
The present topic is focused on the synthesis of bismuth oxide thin films on different
substrates using the electrodeposition technique. Prepared samples were annealed at 573 K and
further used for physical and electrochemical characterizations. The structural investigations of
the prepared samples show polycrystalline nature with a tetragonal crystal structure.
Morphological analysis shows spruce leaves with nano-rod-type architecture morphology. All
samples show hydrophilic nature. Specimens for electrochemical analysis were scanned by CV
in 1 M KOH on numerous scan rates, starting from 1 to 100 mV/s. The obtained maximum
value of specific capacitance (SC) is 1742.79 F/gm. at a scan rate of 2 mV/s in 1 M KOH with
a potential window (– 1.0 V to 0.8 V) vs. Ag/AgCl and acquired maximum value of specific
energy and specific power was 56.68 Wh/Kg and 2.94 kW/kg at 10 mA/cm2
. The Nyquist plot
shows the internal resistance of the optimized electrode. The final optimized sample will be
used for the energy storage supercapacitor application.
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