Investigation of the growth of Na+-Doped ZnO nanorods using hydrothermal method and their photoluminescence properties

Abstract

In this study, the hydrothermal method was used to synthesize Na[Formula: see text]-doped ZnO nanowires with different concentrations of Na[Formula: see text] ions under different synthesis temperatures. First, ZnO films with a thickness of about 300 nm were deposited on glass substrates as a seed layer, and C6H[Formula: see text]N4, Na(NO[Formula: see text]H2O, and Zn(NO[Formula: see text]H2O were used as source materials to grow the Na[Formula: see text]-doped ZnO nanowires using different Na[Formula: see text] concentrations and under different synthesis temperatures. After the Na[Formula: see text]-doped ZnO nanowires were synthesized, their XRD patterns were obtained to analyze their crystal phases. FESEM observations were used to observe the synthesized morphologies, and a fluorescence spectrophotometer was used to show the photoluminescence excitation (PLE) and photoluminescence (PL) emission properties of the Na[Formula: see text]-doped ZnO nanowires. We showed that Na[Formula: see text] precursor concentrations and synthesis temperatures had considerable effects on the crystal phase, surface morphologies, and PL emission and PLE properties of the Na[Formula: see text]-doped ZnO nanowires.