Structural and Electrical Properties of Silver-Doped Zinc Oxide Nanorods Array

Abstract

In this study, silver-doped zinc oxide (ZnO) nanorods were grown by a solution method and the effect of varying the doping concentration on the electrical property and component characteristics of the synthesized ZnO nanorods were studied. The ZnO nanorods were grown in the mixed solution of zinc nitrate hexahydrate (Zn (NO3)2·6H2O), hexamethylenetetramine (C6H12N4), and silver nitrate (AgNO3) at 90oC for 2 hours. The purpose of silver nitrate was to supply dopant atoms. Field-emission scanning electron microscopy (FE-SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD) were used to investigate the surface morphology, chemical compositions, and microstructure of silver-doped ZnO nanorods, and the electrical properties were determined by Hall effect measurement. As found by EDS results, dopant atoms Ag have been successfully incorporated into the crystalline structure of ZnO nanorods, and the conductivity, concentration and mobility of majority carrier in ZnO nanorods have been modified accordingly.