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ZnO RODS SYNTHESIZED BY AQUEOUS CHEMICAL GROWTH
VERONICA CORRAL FLORES
JUAN VALDIVIA MARTINEZ
MARCO LEOPOLDO GARCIA GUADERRAMA
Acceso Abierto
Sin Derechos Reservados
Chemical Growth
Zinc oxide rods were synthesized by aqueous chemical growth on different substrates, e.g. plane glass, ITO-coated glass substrates, stainless steel and platinumcoated silicon wafers. The effect of pressure was studied on open and closed reaction vessels at 90ºC for six hours on ITO-coated glass substrates. Closed reaction gave rise to conic shaped rods with average diameter of 0.61 ± 0.21 μm, while more homogeneous rods of 0.91 ± 0.17 μm were grown at open conditions. Rod length increased from 3.00 ± 0.47 to 3.67 ± 0.92 for close and open conditions respectively. As for the effect of reaction time, a sample was grown for 20 hours at closed conditions. Ave. diameter was not affected significantly, while length increased up to 7.30 ± 0.85 μm. Pt-coated silicon and stainless steel substrates promoted the formation of ZnO rods with a flower-like morphology, with similar dimensions than those grown over glass. In all cases, the hexagonal phase verified by grazing incidence X-ray diffraction.
2012-03
Memoria de congreso
Inglés
OTRAS
Versión revisada
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