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Shin, Jae Hui,Baek, Seung Ki,Cho, Sung Woon,Kang, Se Hwang,Bang, Jun Sik,Cho, Hyung Koun The Electrochemical Society 2015 Journal of the Electrochemical Society Vol.162 No.8
<P>We investigated the influence of antimony (Sb) dopants (6 ∼ 11 at%) with multivalent metal ions (Sb<SUP>3+</SUP>/Sb<SUP>5+</SUP>) on the electrical properties of ZnO nanorods for application in photoelectronic devices. More vertically aligned and more conductive <I>n-</I>type ZnO nanorods were effectively prepared via the electrochemical deposition process. The addition of a small amount of Sb in the ZnO nanorods induced a faster growth rate and high aspect ratio. The remarkable enhancement of electrical conductivity resulting from Sb doping was confirmed by photoelectrochemical performance and current-voltage measurements in all oxide <I>n-</I>type ZnO/<I>p-</I>type Cu<SUB>2</SUB>O heterojunctions, which was ascribed to the substitution of Sb for Zn sites without defect complexes. These results demonstrate the feasibility of using Sb as an <I>n-</I>type dopant in ZnO nanorods in a wet-based electrodeposition process.</P>