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SnO2 thin-films prepared by a spray-gel pyrolysis: Influence of sol properties on film morphologies
SnO2 thin-films prepared by a spray-gel pyrolysis: Influence of sol properties on film morphologies
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Fecha
2007
Autores
Luyo C.
Fábregas I.
Reyes L.
Solís J.L.
Rodríguez J.
Estrada W.
Candal R.J.
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Editor
Elsevier
Proyectos de investigación
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Abstracto
Nanostructured tin oxide films were prepared by depositing different sols using the so-called spray–gel pyrolysis process. SnO2 suspensions (sols) were obtained from tin (IV) tert-amyloxide (Sn(t-OAm)4) or tin (IV) chloride pentahydrate (SnCl4·5H2O) precursors, and stabilized with ammonia or tetraethylammonium hydroxide (TEA-OH). Xerogels from the different sols were obtained by solvent evaporation under controlled humidity.
Descripción
This work was financially supported by the University of Buenos Aires (UBACyT; TX 117 and X093), ANPCyT (Agencia nacional de Promoción de Ciencia y Tecnología) PICT 10621, the International Program for Physical Science of Uppsala University, Sweden (IPPS), the Research Institute of Universidad Nacional de Ingeniería, the CONCYTEC (Peruvian Research Council), and CYTED network VIII-G.
Palabras clave
Xerogels,
Chemical sensors,
Morphology,
Pyrolysis,
Sol-gel process,
Tin oxides,
Relative Gelling Volumes (RGV),
Spray-gel,
Tert-amyloxide,
Tetraethylammonium hydroxide (TEA-OH),
Thin films