Please use this identifier to cite or link to this item: doi:10.22028/D291-24454
Title: SiO2-coatings on glass containing copper colloids using the sol-gel-technique
Author(s): Mennig, Martin
Schmitt, Mike
Kutsch, Bernd
Schmidt, Helmut K.
Language: English
Year of Publication: 1994
OPUS Source: Sol-gel optics III : 25-27 July 1994, San Diego, California / John D. Mackenzie, chair/editor; sponsored by SPIE--The International Society for Optical Engineering. - Bellingham, Wash., USA : SPIE, 1994. - (SPIE proceedings series ; 2288), S. 120-129
SWD key words: Silber
Kolloides Metall
Optische Eigenschaft
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: A sol-gel method for the preparation of transparent copper nano particle-containing SiO2 coatings on glass has been developed. The sol is synthesised from alkoxysilanes and tetra ethyl orthosilicate with copper ammine complexes, prepared from Cu²+ salts and amino alkoxy silames. Glass substrates are coated by dipping and layers up to 1 µm in thickness are obtained after thermal densification at temperatures between 200°-500°C. The Cu colloid formation can be achieved using a reducing atmosphere during densification. Thus reddish-brown coloured coatings on glass with optical densities between 0.5 and 2 are obtained. Under ambient air the colour turns from reddish-brown to dark green. This process is reversible and by re-heating under reducing conditions the reddish-brown colour can be re-establised. UV-VIS absorbance measurements and structural investigations by WAXS, TEM, ESCA and SNMS show that the green colour is due to an oxide layer at the colloidal interface.
Link to this record: urn:nbn:de:bsz:291-scidok-27657
ISBN: 0-8194-1612-6
Date of registration: 11-Mar-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 
sm199411.pdf2,21 MBAdobe PDFView/Open

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