Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/925032

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Title
Quantitative, nanoscale mapping of sp² percentage and crystal orientation in carbon multilayers
Author/Creator
Bosman, M.;  Keast, V. J.;  Watanabe, M.;  McCulloch, D. G.;  Shakerzadeh, M.;  Teo, E. H. T.;  Tay, B. K.
Institution
The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences
Description
Experimental and analytical techniques are introduced for the quantitative, nanoscale mapping of chemical bonding information in carbon-based materials. With these techniques, the spatial orientation of graphitic crystallites in tetrahedrally bonded amorphous carbon was imaged. Simultaneously, the percentage of sp²- and sp³-bonded carbon could be mapped quantitatively, all with spatial resolution of just a few nanometers. Two electron energy-loss spectroscopy (EELS) techniques were compared: low-loss mapping of the plasmon energy and core-loss mapping of the carbon ionization edge. The recently developed EELS acquisition routine of binned gain averaging was applied, together with multivariate statistical analysis, providing a robust method for obtaining real-space, two-dimensional bonding maps.
Relation
Carbon Vol. 47, Issue 1, p. 94-101
Publisher Link
http://dx.doi.org/10.1016/j.carbon.2008.09.033
Date
2009
Publisher
Elsevier
Keyword(s)
nanoscale mappings;  carbon;  chemical bonds;  electron energy-loss spectroscopy
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/925032
Identifier
ISSN:0008-6223
Reviewed
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Subject
"Carbon"
 
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