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Chemically Synthesized ZnO Thin Film Electrode for Supercapacitor Application
- Source :
- International Journal of Nanoscience. 21
- Publication Year :
- 2022
- Publisher :
- World Scientific Pub Co Pte Ltd, 2022.
-
Abstract
- In this paper, we synthesized zinc oxide (ZnO) thin film by using a cost effective chemical bath deposition technique (CBD) at 90∘C. The as-deposited ZnO films exhibited polycrystalline in nature. The FESEM image shows growth of nanorods about 0.2[Formula: see text][Formula: see text]m length. The Raman spectrum was recorded using frequency of 532[Formula: see text]nm with excited line Nd-YAG laser. The optical band gap of ZnO thin film obtained 3.37[Formula: see text]eV. The value of RMS roughness is determined by atomic force microscopy (AFM), found to be 34[Formula: see text]nm. The supercapactive studies were determined in 2[Formula: see text]M[Formula: see text]KOH aqueous electrolyte by means of cyclic voltammetry and charge–discharge technique. ZnO exhibited maximum specific capacitance of ZnO 204[Formula: see text]F/g at the scan rate of 5[Formula: see text]mV/s.
Details
- ISSN :
- 17935350 and 0219581X
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- International Journal of Nanoscience
- Accession number :
- edsair.doi...........41041b07dcd07c1aca9c5dccaa9036af