Publication:
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
No Thumbnail Available
Date
2007
Authors
Luyo C.
Fábregas I.
Reyes L.
Solís J.L.
Rodríguez J.
Estrada W.
Candal R.J.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Research Projects
Organizational Units
Journal Issue
Abstract
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.
Description
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.
Keywords
Xerogels,
Chemical sensors,
Morphology,
Pyrolysis,
Sol-gel process,
Tin oxides,
Relative Gelling Volumes (RGV),
Spray-gel,
Tert-amyloxide,
Tetraethylammonium hydroxide (TEA-OH),
Thin films