Abstract
Controlling the growth orientation of semiconductor nanowire arrays is of vital importancefor their applications in the fields of nanodevices. In the present work, hexagonal CdSenanowire arrays with various preferential growth orientations have been successfully yieldedby employing the electrodeposition technique using porous alumina as templates (PATs).We demonstrate by experimental and theoretical efforts that the growth orientation of theCdSe nanowires can be effectively manipulated by varying either the nanopore diameter ofthe PATs or the deposited current density, which has significant effects on theoptical properties of the CdSe nanowires. The present study provides an alternativeapproach to tuning the growth direction of electrodeposited nanowires and thus is ofimportance for the fabrication of nanodevices with controlled functional properties.
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