New nanocrystalline colored oxynitride thin films from Ti4+ -functionalized ZnO nanocolloids

This contribution highlights our efforts to elaborate new colored layers of zinc-titanium oxynitrides nanomaterials for solar technologies. In order to get colored oxynitrides, one can perform an ammonia-induced replacement of oxygen (O2-) by nitrogen (N3-). This approach has been designed in our ne...

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Published inSuperlattices and microstructures Vol. 38; no. 4-6; pp. 300 - 307
Main Authors Grasset, F., Spanhel, L., Ababou-Girard, S.
Format Journal Article
LanguageEnglish
Published Elsevier 01.10.2005
Subjects
Chemical Sciences
Inorganic chemistry
Material chemistry
or physical chemistry
Theoretical and
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Summary:This contribution highlights our efforts to elaborate new colored layers of zinc-titanium oxynitrides nanomaterials for solar technologies. In order to get colored oxynitrides, one can perform an ammonia-induced replacement of oxygen (O2-) by nitrogen (N3-). This approach has been designed in our new low-cost colloidal sol-gel route to nanosized colored "ZnTiON" porous layers on glass. The nanocolloidal precursors solutions carrying TO+ -functionalized ZnO nanoparticles were emphasized in UV-vis and dynamic light scattering (DLS) studies. Wet films prepared from these sols via dip coating of glass slides were pre-sintered at 400 deg C in air and annealed under ammonia gas at temperatures between 500 and 800 deg C. Above the dissociation temperature of ammonia, the spectra are progressively red-shifted on increasing the nitriding temperature. XRD, SEM and XPS -analysis of the "ZnTiON" nanostructured thin films are presented.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0749-6036
1096-3677
DOI:10.1016/j.spmi.2005.08.023