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Titel: Parameters affecting the electrical conductivity of SnO2:Sb sol-gel coatings
Verfasser: Gasparro, Guido
Pütz, Jörg
Ganz, Dietmar
Aegerter, Michel A.
Sprache: Englisch
Erscheinungsjahr: 1998
Quelle: Solar energy materials & solar cells. - 54. 1998, S. 287-296
SWD-Schlagwörter: Dünne Schicht
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumentart : Journalartikel
Kurzfassung: SnO2: Sb single and multilayer coatings have been prepared by the sol-gel dip and spin coating method, and by spray pyrolysis from various precursor solutions. Subsequently, the films have been heat treated in a convection furnace or by cw CO2 laser irradiation, respectively. The influence of the different deposition and heating techniques on the electrical and morphological properties of the resulting films has been investigated by van der Pauw/Hall method and high resolution transmission electron microscopy (HRTEM) cross-sectional images. It is shown that the resistivities of the dip and spin coated films are at least one order of magnitude higher compared to those of spray coated films obtained from the same precursor solution. In dip coated multilayer systems an alternating structure of loosely packed and dense layers can be observed leading to a decrease in resistivity with the number of layers. A similar densified surface structure is found in laser treated films together with larger crystallites. It is concluded that the differences in resistivity occurring from the deposition technique and the heating process are linked to structural differences of the coatings whereas the chemical composition of the solution plays a minor role for the electrical properties.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-24519
SciDok-Publikation: 19-Nov-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

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