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Optical Properties of Carbon Nanoparticles

Published online by Cambridge University Press:  25 July 2011

Nikolay N. Melnik
Nikolay N. Melnik*
Affiliation:
P.N.Lebedev Physical Institute RAS, Moscow, Russian Federation
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Abstract

Samples of carbon nanoparticles obtained by different technologies (carbon plasma deposition, irradiation, anodic etching etc.). by Raman scattering and photoluminescence were studied. It was shown that there are carbon nanoparticles which consist of a core containing sp2 bonds and a shell containing sp3 bonds. These particles have a rather intense photoluminescence. We propose the following photoluminescence mechanism of such nanoparticles: first the nanoparticle core absorbs light; further excitation is transmitted to the external cover or environment where photorecombination occurs. This effect occurs when the size of the particles becomes smaller than the size of the wave function excited state of the nanoparticle. The aim of this research is to check this mechanism.

Keywords

nanostructureCRaman spectroscopy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1362: Symposium QQ – Carbon Functional Interfaces , 2011 , mrss11-1362-qq09-14
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

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