Please use this identifier to cite or link to this item: doi:10.22028/D291-24634
Title: Transparent conducting coatings made from redispersable crystalline nanoscaled powders
Author(s): Goebbert, Christian
Bisht, Harish
Nonninger, Ralph
Aegerter, Michel A.
Schmidt, Helmut K.
Language: English
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
In situ
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 &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 to this record: urn:nbn:de:bsz:291-scidok-29426
ISBN: 1-558-99481-5
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

Files for this record:
File Description SizeFormat 
sm199925.pdf2,09 MBAdobe PDFView/Open

Items in SciDok are protected by copyright, with all rights reserved, unless otherwise indicated.