Synthesis of ZnO nanotubes via seed layer modulated by zinc acetate: pH-controlled interface growth
摘要
The seed layer-assisted synthesis of ZnO nanotubes has emerged as an efficient method to significantly enhance the structural and electronic characteristics of ZnO nanomaterials. By employing a carefully prepared seed layer, this technique facilitates the nucleation process, leading to the controlled growth of ZnO nanotubes with well-defined morphologies. Such precision in morphology is critical, as it directly influences the material’s functional properties. In this study, ZnO nanotubes with an average diameter of approximately 250 nm and a surface density of 22–25 nanotubes/µm2 were achieved following four cycles of coating. This layered approach allowed for consistent nanotube formation, enabling us to obtain a densely packed array of nanotubes with uniform structural characteristics across the substrate. Energy-dispersive X-ray (EDX) analysis and X-ray diffraction (XRD) measurements confirmed the formation of ZnO nanotubes with an average crystal size of 40.8 nm. XRD results indicated a preferential growth orientation along the (002) crystallographic plane, suggesting a highly oriented structure conducive to enhanced electronic performance. Further insights were gained from Mott