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Abstract
The functionality and structural properties of nanomaterials significantly depend on the synthesis method. This work explored a novel fast route to deposit ultrathin zinc oxide (ZnO) nanoflakes on a conical microprobe tip by combining the effect of hydrothermal, electrochemical, and electro-discharge deposition process. The experimental results indicate the formation of ZnO nanoflakes and show the variance of thickness (min≤10 nm)/morphologies at different electrochemical parameters. The impact of varying voltage potential and concentration was analyzed and discussed. A hydrothermally prepared precursor solution of zinc nitrate hexahydrate (Zn(NO3)2·6H2O) and hexamine ((CH2)6N4) was used as a growth solution. The crystallinity and phase purity were analyzed by XRD. The functional groups, molecular fingerprints, were recognized by FTIR. Further, the bandgap energy (3.262eV) was estimated by Mott-Davis relation in UV–Vis spectroscopy via Tauc plot.
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