Controlled Fabrication of ZnSe Arrays of Well-Aligned Nanorods, Nanowires, and Nanobelts with a Facile Template-Free Route

Well-aligned ZnSe nanorod, nanowire, and nanobelt arrays have been selectively grown on Zn foil by simply modifying reaction temperature and time. X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman scattering spectroscopy, and cathodoluminescence were used to characterize the products. The as prepared ZnSe one-dimensional (1D) nanostructures are all single crystalline and have a [0001] preferential growth direction. The growth mechanism of 1D ZnSe nanostructure arrays with different shapes is also discussed based on the thermodynamics and kinetics control of diffusion, nucleation, and growth.