Publicación:
SnO2 thin-films prepared by a spray-gel pyrolysis: Influence of sol properties on film morphologies

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Fecha
2007
Autores
Irusta, S
Kou, MRS
Lopez, A
Picasso, G
Rojas, J
Vargasmachuca, O
Zavala, C
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Editor
Elsevier
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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
Citación