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Determination of the Number of Molecules Bonded to a CdSe Nanocrystallite Surface

Published online by Cambridge University Press:  21 February 2011

Sara Majetich ,
Jennifer Newbury  and
Dale Newbury
Sara Majetich
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
Jennifer Newbury
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
Dale Newbury
Affiliation:
National Institute of Standards and Technology, Surface and Microanalysis Science Division, Gaithersburg, MD 20899
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Abstract

Electron excited energy dispersive X-ray spectrometry (EDS) was used to determine the atomic species present in 35 Å diameter CdSe nanocrystallites. Both theoretical modeling and experimental calibration with standard materials were used to relate the relative X-ray intensities to the atomic fractions present in the sample. The EDS results were normalized to those found by elemental analysis, which also detects light elements. With different surface models, and the atomic fractions found by EDS, the number of surface groups per nanocrystallite was determined.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 332: Symposium U – Determining Nanoscale Physical Properties of Materials by Microscopy and Spectroscopy , 1994 , 321
Copyright
Copyright © Materials Research Society 1994

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References

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