Charge transfer in single-walled carbon nanotubes filled with cadmium halogenides

In this work the internal channels of the single-walled carbon nanotubes (SWCNTs) were filled with cadmium chloride, cadmium bromide, and cadmium iodide by a capillary method using melts of these salts. The influence of incorporated chemical compounds on the electronic properties of the carbon nanot...

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Bibliographic Details
Published in:Journal of materials science 2013-12, Vol.48 (24), p.8412-8419
Main Authors: Kharlamova, M. V., Yashina, L. V., Lukashin, A. V.
Format: Article
Language:English
Subjects:
Cadmium
Carbon
Channels
Characterization and Evaluation of Materials
Charge transfer
Chemical bonds
Chemical compounds
Chemical properties
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Electrons
Fine structure
Materials Science
Melts
Nanocrystals
Nanotubes
Optical properties
Organic chemistry
Photoelectrons
Polymer Sciences
Raman spectroscopy
Single wall carbon nanotubes
Solid Mechanics
Spectrum analysis
X ray absorption
X ray photoelectron spectroscopy
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Summary:In this work the internal channels of the single-walled carbon nanotubes (SWCNTs) were filled with cadmium chloride, cadmium bromide, and cadmium iodide by a capillary method using melts of these salts. The influence of incorporated chemical compounds on the electronic properties of the carbon nanotubes was investigated by optical absorption spectroscopy, Raman spectroscopy, near edge X-ray absorption fine structure spectroscopy, and X-ray photoelectron spectroscopy. It was found that there is the chemical bonding between carbon atoms of nanotube walls and metal atoms of encapsulated CdX 2 nanocrystals. The obtained data testify acceptor doping effect of cadmium halogenides incorporated into the SWCNT channels, which is accompanied by the charge transfer from nanotube walls to introduced substances.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-013-7653-6