Incorporation of boron and nitrogen in carbon nanomaterials and its influence on their structure and opto-electronical properties

The presence of hexagonal boron nitride in the initial C:BN:Ni:Y 2O 3 mixture in the arc-discharge process leads to the modification of carbon nanostructures and to the creation of B x C y N z entities. BN-incorporation into these carbon nanostructures (single-wall nanotubes and carbon flakes) has b...

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Bibliographic Details
Published in:Carbon (New York) 2012-03, Vol.50 (3), p.791-799
Main Authors: Arutyunyan, N.R., Arenal, R., Obraztsova, E.D., Stephan, O., Loiseau, A., Pozharov, A.S., Grebenyukov, V.V.
Format: Article
Language:eng ; rus
Subjects:
Band spectra
Boron nitride
Carbon
Nanocomposites
Nanomaterials
Nanostructure
Nanotubes
Synthesis
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Summary:The presence of hexagonal boron nitride in the initial C:BN:Ni:Y 2O 3 mixture in the arc-discharge process leads to the modification of carbon nanostructures and to the creation of B x C y N z entities. BN-incorporation into these carbon nanostructures (single-wall nanotubes and carbon flakes) has been analyzed by high resolution transmission electron microscopy and electron energy loss spectroscopy. The optical absorption spectroscopy measurements have revealed a monotonous increase of the bandgap value of the synthesized nanotubes with the increase of the content of BN phase in the initial mixture of the synthesis compounds. Furthermore, a narrowing of the nanotube diameter distribution in favor of small diameters takes place in the presence of BN during the synthesis process.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2011.09.035