Please use this identifier to cite or link to this item:
|Title:||Transparent conducting coatings made from redispersable crystalline nanoscaled powders|
Aegerter, Michel A.
Schmidt, Helmut K.
|Year of Publication:||1999|
|OPUS Source:||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 key words:||Galvanische Abscheidung|
|DDC notations:||620 Engineering and machine engineering|
|Publikation type:||Conference Paper|
|Abstract:||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 Ω (550 °C) for ATO and 90 Ω (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 to this record:||urn:nbn:de:bsz:291-scidok-29426|
|Date of registration:||30-Aug-2010|
|Faculty:||SE - Sonstige Einrichtungen|
|Department:||SE - INM Leibniz-Institut für Neue Materialien|
SciDok - Der Wissenschaftsserver der Universität des Saarlandes
Items in SciDok are protected by copyright, with all rights reserved, unless otherwise indicated.