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By using the constant-current electrochemical method,nanostructure ZnO was deposited on the modified ITO substrate.the relationship between Zn(NO3)2·6H2O concentration and the morphology,the crystalline phases,morphology and thickness,sheet resistances,transmittance,the oxidation and reduction potential were researched by XRD,FE-SEM,RTS-8,UV-Vis,Cyclic Voltammetry.The results indicated that one-dimensional(1D) nanopillars were prepared by low concentration of electrolyte,whereas two-dimensional(2D) nanodisks with compact hexagonal were obtainted by high concention of electrolyte.UV-Vis spectroscopy revealed that the transmittance of ZnO nanopillars and nanodisks were more than 85% at the range of 400～900 nm,RTS-8 analysis indicated that sheet resistances of ZnO thin films are about 14.5 Ω/□,Cyclic Voltammetry analysis indicated significant differences of the potentials of oxidation and reduction between two kinds of morphology,whose ZnO nanopillars were-0.54 V(vs.SCE)and ZnO nanodisks were-0.72 V(vs.SCE),respectively.The results revealed that ZnO thin films with nanodisks had better chemical stability. |
