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Titel: Influence of the heating rate on the microstructure and on macroscopic properties of sol-gel SnO2:Sb coatings
Verfasser: Pütz, Jörg
Ganz, Dietmar
Gasparro, Guido
Aegerter, Michel A.
Sprache: Englisch
Erscheinungsjahr: 1998
Quelle: Journal of sol-gel science and technology. - 13. 1998, S. 1005-1010
SWD-Schlagwörter: Sol-Gel-Verfahren
Tauchbeschichten
Antimon
Mikrostruktur
Durchstrahlungselektronenmikroskopie
Rutherford Back Scattering
DDC-Sachgruppe: 620 Ingenieurwissenschaften und Maschinenbau
Dokumentart : Journalartikel
Kurzfassung: Sol-gel dip-coated films of transparent conducting antimony-doped tin oxide (SnO2 : Sb) have been heat treated with heating rates varying from 0.2 to 4300 K/s using either a furnace or cw CO2 laser irradiation. The final sintering temperature of 540°C was maintained for up to 15 min. The sheet resistance of the coatings decreases with increasing heating rate. A decrease of the sheet resistance with the sintering time at constant temperature can be observed for low heating rates but the final values are higher than those obtained with higher heating rates. It is assumed that the densification of the coatings is determined by a competition between the nucleation at low temperatures and the growth of the crystallites at high temperatures. The microstructure of the coatings has been investigated by high resolution TEM cross-sections, X-ray diffraction, and Rutherford back scattering (RBS) and has been correlated to the resulting electrical properties measured by 4 point technique. Different mechanisms of heating arise with the furnace and the cw CO2 laser.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-24946
hdl:20.500.11880/24310
http://dx.doi.org/10.22028/D291-24254
SciDok-Publikation: 12-Dez-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

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