Please use this identifier to cite or link to this item: doi:10.22028/D291-24558
Title: Small-angle x-ray scattering experiments in grazing incidence on sol-gel coatings containing nano-scaled gold colloids : a new technique for investigating thin coatings and films
Author(s): Kutsch, Bernd
Schmitt, Mike
Mennig, Martin
Schmidt, Helmut K.
Lyon, O.
Language: English
Year of Publication: 1997
OPUS Source: Journal of applied crystallography. - 30. 1997, 6, S. 948-956
SWD key words: Goldverarbeitung
Dünne Schicht
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: Small-angle X-ray scattering (SAXS) is generally not applicable to thin (∼­1 µm) films and coatings because of their weak scattering signal in conventional transmission experiments. This restriction can be overcome by working in grazing incidence, with an angle of incidence α slightly above the critical angle of total reflection φc, in order to augment the effective X-ray path in the sample. The possibilities of this technique are demonstrated by preliminary results obtained on glass-like solgel coatings containing nano-scaled gold colloids. The scattering of the gold colloids was identified by variations of the X-ray energy near the absorption edge of gold (anomalous SAXS). It showed the theoretically predicted variation of intensity with energy. The recorded scattering spectra were corrected for absorption and refraction effects, whose influences on the spectra are discussed. Calculated size distributions of the colloids from SAXS in grazing incidence were compared with results from high-resolution transmission electron microscopy (HTEM) investigations and optical UV-visible spectroscopy.
Link to this record: urn:nbn:de:bsz:291-scidok-28589
Date of registration: 14-May-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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