ISSN:
1573-4846
Schlagwort(e):
solution ageing
;
dip-coating
;
tin oxide
;
morphology
;
physical properties
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract In the sol-gel technology, either for bulk or thin films, the stability in time of the solutions is a major factor to control. An evolution of the solution may influence strongly the properties of the elaborated material (thickness, cracks, refractive index, conductivity, etc.), and cases have been reported where solutions had to be stored in a dry and cold place to prevent any hydrolysis-condensation reaction, and so any consequent gelation. This paper evaluates the influence of the solution aging on the properties of undoped SnO2 layers obtained by sol-gel dip-coating (SGDC). Results are given in relation with storage conditions and for experiences conducted over several months. The evolution of the solution viscosity is first followed, and the corresponding properties for the layers are presented: optical reflection and transmission, optical gap, conductivity, morphology... The importance of the interaction with water is discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1018355714723
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