Effect of Zinc Oxide Nanostructures on Electrochemical Behaviors
Résumé
Zinc oxide (ZnO) covers a wide scope of application through its important properties, such as
photovoltaic cells [1], anti-UV coating [2], and electrode materials of capacitors [3]. Several
studies have reported the effect of ZnO on the improvement of capacitive performance of
supercapacitors [4-5]. However, the structural property of zinc oxide thin films is the main
reason causing the change of its electrochemical property.
In this work, we have studied the effect of ZnO nanowires size on positive synergistic effect.
ZnO thin films with different nanowires size were synthetized by using electrochemical
method. However, we managed to improve the electrochemical performance of ZnO thin films
by creating a double scale of roughness. Microsheets and nanowires of ZnO thin films were
studied by using electrochemical methods (cyclic voltammetry and electrochemical impedance
spectroscopy). Morphology of synthetized ZnO thin films was characterized by scanning
electron microscopy (SEM). Cyclic voltammetry has been carried out to study the effect of the
structural property of ZnO on the system performance. The effect of surface roughness on the
electrochemical property has been discussed.
References
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