Suffner, Jens ; Agoston, Peter ; Kling, Jens ; Hahn, Horst (2010)
Chemical vapor synthesis of fluorine-doped SnO2 (FTO) nanoparticles.
In: J. Nanoparticle Res., 12 (7)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The synthesis and properties of nanocrystalline SnO2 particles and the effects of doping with fluorine are reported in this work. Simultaneous thermal decomposition of tetramethyltin and difluoromethane in the chemical vapor synthesis process was employed. The nanoparticles were analyzed with respect to their structure using X-ray diffraction followed by Rietveld refinement, transmission electron microscopy, nitrogen adsorption, X-ray photoelectron spectroscopy, and Fourier-transformed infrared spectroscopy. Based on the experimental results, a point defect model is proposed, which is supported by density functional theory calculations. At low fluorine concentrations, fluorine substitutes oxygen on a lattice site, while fluorine is located interstitially at high concentrations. The formation of an associated fluorine substitutional-interstitial pair is observed instead of isolated interstitial fluorine.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Suffner, Jens ; Agoston, Peter ; Kling, Jens ; Hahn, Horst |
| Art des Eintrags: | Bibliographie |
| Titel: | Chemical vapor synthesis of fluorine-doped SnO2 (FTO) nanoparticles |
| Sprache: | Englisch |
| Publikationsjahr: | September 2010 |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | J. Nanoparticle Res. |
| Jahrgang/Volume einer Zeitschrift: | 12 |
| (Heft-)Nummer: | 7 |
| URL / URN: | http://www.springerlink.com/content/n33036978k770mm8/ |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The synthesis and properties of nanocrystalline SnO2 particles and the effects of doping with fluorine are reported in this work. Simultaneous thermal decomposition of tetramethyltin and difluoromethane in the chemical vapor synthesis process was employed. The nanoparticles were analyzed with respect to their structure using X-ray diffraction followed by Rietveld refinement, transmission electron microscopy, nitrogen adsorption, X-ray photoelectron spectroscopy, and Fourier-transformed infrared spectroscopy. Based on the experimental results, a point defect model is proposed, which is supported by density functional theory calculations. At low fluorine concentrations, fluorine substitutes oxygen on a lattice site, while fluorine is located interstitially at high concentrations. The formation of an associated fluorine substitutional-interstitial pair is observed instead of isolated interstitial fluorine. |
| Freie Schlagworte: | Vapor phase synthesis , Tin oxide � Transparent conducting oxides (TCO), Density functional theory (DFT), Point defects |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 22 Feb 2012 16:25 |
| Letzte Änderung: | 05 Mär 2013 09:59 |
| PPN: | |
| Sponsoren: | The authors thank the State of Hesse for the financial support for a major equipment grant., Financial support by the Deutsche Forschungsgemeinschaft (DFG) through individual grants and through the Center for Functional Nanostructures (CFN) is gratefully acknowledged. |
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