Measurement of shell thickness in CdSe/CdS nanoparticles with X-ray absorption spectroscopy

Using X-ray absorption spectroscopy at the Cd M-edge, we have investigated chemically prepared colloidal CdSe/CdS core/shell nanoparticles. The Cd 3d features originating from CdSe and CdS could be separated. From the intensity ratio of the CdSe and CdS contributions, we determined the core and shel...

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Bibliographic Details
Published in:Journal of electron spectroscopy and related phenomena 2008-11, Vol.166, p.81-83
Main Authors: Pietzsch, A., Suljoti, E., Nagasono, M., Föhlisch, A., Wurth, W.
Format: Article
Language:English
Subjects:
Cadmium selenide
Cadmium sulphide
Nanostructures
Near edge extended X-ray absorption fine structure (NEXAFS)
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Summary:Using X-ray absorption spectroscopy at the Cd M-edge, we have investigated chemically prepared colloidal CdSe/CdS core/shell nanoparticles. The Cd 3d features originating from CdSe and CdS could be separated. From the intensity ratio of the CdSe and CdS contributions, we determined the core and shell thickness for two different sizes.
ISSN:0368-2048
1873-2526
DOI:10.1016/j.elspec.2008.07.006