Please use this identifier to cite or link to this item: doi:10.22028/D291-24248
Title: SnO2:Sb transparent conducting coatings made by different sol-gel processes
Author(s): Ganz, Dietmar
Göbbert, Christian
Gasparro, Guido
Pütz, Jörg
Aegerter, Michel A.
Language: English
Year of Publication: 1997
OPUS Source: Sol-gel optics IV : 30 July-1 August 1997, San Diego, California / Bruce S. Dunn ... [et al.], chairs/editors. - Bellingham, Wash. : SPIE, c1997. - (SPIE proceedings series ; 3136), S. 407-418
SWD key words: Kristallmorphologie
Fused Silica
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: Single and multilayer sol-gel coatings of transparent antimony-doped tin oxide (SnO2:Sb) have been prepared on borosilicate and fused silica substrates using either a 5 mole% SbCl3 doped 0.5 M solution of SnCl2(OAc)2 in ethanol or a water suspension of crystalline Sb-doped tin oxide nanoparticles. The nanoscale morphology and the electrical parameters of the layers have been determined after different firing procedures and heating rates varying from 0.2 to 4300 K/s obtained either in a furnace or by cw carbon- dioxide laser irradiation. For a given sintering temperature (approximately 540 degrees Celsius) a slow heating process in furnace leads to porous, homogeneous single and multilayers consisting of small crystallites. They present a high resistivity of about Ρ=4 X 10-2 Ωcm. With increasing heating rate the layers become denser with larger crystallites and the resistivity value decrease down to approximately 7 X 10-3 Ωcm for 4300 K/s (carbon-dioxide laser sintering). It is proposed that the densification of the coatings is determined by a competition between nucleation at low temperatures and the growth of the crystallites at high temperatures.
Link to this record: urn:nbn:de:bsz:291-scidok-24859
ISBN: 0-8194-2558-3
Date of registration: 4-Dec-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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