Nano Science and Technology Institute
Nanotech 2008 Vol. 3
Nanotech 2008 Vol. 3
Nanotechnology 2008: Microsystems, Photonics, Sensors, Fluidics, Modeling, and Simulation - Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 3
Chapter 1: Photonics & Nanowires

Low temperature synthesis and characterization of large scale ZnMgO nanowire architectures

Authors:P. Shimpi, P-X Gao
Affilation:University of Connecticut, US
Pages:130 - 133
Keywords:nanowire, semiconductor, synthesis, ZnMgO
Abstract:Large scale hexagonal ZnMgO nanowire array and network with tunable shapes has been successfully synthesized on solid Si substrate, and flexible substrates (Au and Pd coated plastic substrates) using low temperature hydrothermal synthesis technique. The diameters of the nanowires have been controlled in the range of 150-200 nm. Field-emission scanning electron microscopy (FE-SEM) was used to investigate the surface morphologies and orientations of the nanowires. X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis-NIR spectrophotometry, room temperature photoluminescence (PL) measurements were used to determine the structural and optical properties of the as-grown nanowire architectures. The energy dispersive X-ray spectroscopy (EDS) indicates that the Mg concentration in the ZnMgO nanowires can reach ~2-5 atomic percent. To confirm the alloying process of Mg into ZnO and its distribution during the growth process, X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES) were also carried out for quantitative analysis of the surface and depth composition profile of typical ZnMgO nanowires.
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