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Titel: Transparent conducting coatings made from redispersable crystalline nanoscaled powders
Verfasser: Goebbert, Christian
Bisht, Harish
Nonninger, Ralph
Aegerter, Michel A.
Schmidt, Helmut K.
Sprache: Englisch
Erscheinungsjahr: 1999
Quelle: Multicomponent oxide films for electronics : symposium held April 6 - 8, 1999, San Francisco, California, U.S.A / ed.: Marilyn E. Hawley … - Warrendale, Pa. : Materials Research Society, 1999. — (Materials Research Society symposium proceedings ; 574), S. 199-204
SWD-Schlagwörter: Galvanische Abscheidung
In situ
DDC-Sachgruppe: 620 Ingenieurwissenschaften und Maschinenbau
Dokumentart : InProceedings (Aufsatz / Paper einer Konferenz etc.)
Kurzfassung: A new wet chemical concept is presented for the preparation of electrically conducting SnO2:Sb (ATO) and In2O3:Sn (ITO) coatings. It is based on the deposition by spin, dip or spray techniques of a solution containing crystalline nanoscaled particles fully redispersable in a solvent. The particle synthesis is carried out in a solution at temperatures < 200 °C by a controlled growth reaction using SnCI4 and InCl3 as precursors and SbCl3 and SnCl4 as dopant, respectively. The aggregation of the particles is avoided by in-situ surface modification with bifunctional organic molecules. After drying the nanocrystalline particles can be fully redispersed in ethanol at pH < 6 (for ITO) or water at pH > 8 (for ATO) with solid contents up to 8.8 vol. %. Single layers with thickness up to 200 nm (ATO) and 400 nm (ITO) have been fabricated. Their sheet resistance decrease with the sintering temperature. Typical lowest values are 430 &Omega; (550 °C) for ATO and 90 &Omega; (900 °C) for reduced ITO. The resistivity of as fired ATO and ITO coatings is stable but it slightly increases with time for ITO in the reduced state. All coatings have a transmission in the visible range of about 90 %. Anti-glare conducting coatings on glass with 70 GU as well as antistatic coatings on polycarbonate substrates have been obtained with chemically modified ITO suspensions.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-29426
ISBN der Druckausgabe: 1-558-99481-5
SciDok-Publikation: 30-Aug-2010
Fakultät: SE - Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:SciDok - Elektronische Dokumente der UdS

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