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Fullerene-functionalized carbon nanotubes as improved optical limiting devices

N. Mackiewicz, T. Bark, B. Cao, J. A. Delaire, D. Riehl, W. L. Ling, S. Foillard and E. Doris ; Carbon, 2011, 49 (12), 3998-4003

Références :

Carbon, 2011, 49 (12), 3998-4003

Auteur(s) : 

N. Mackiewicz, T. Bark, B. Cao, J. A. Delaire, D. Riehl, W. L. Ling, S. Foillard and E. Doris




We report the synthesis, characterization and optical limiting behavior of a nanohybrid built by grafting C60-fullerenes on carbon nanotubes (CNTs). The nonlinear optical limiting properties of the CNT-C60 complex were investigated at wavelengths where C60 does not absorb. We found that the nanohybrid had superior performances to those of CNTs and fullerenes, either taken individually or as a mixture. This enhanced optical limitation of the nanohybrid suggests not only cooperative but also synergistic effects between the two carbon forms. A mechanism involving higher excitonic states of the CNTs formed by Auger recombination of low energy excitons is proposed.




Type :
Publication
Dates :
Paru le 27 mai 2011
Informations complémentaires :
http://dx.doi.org/10.1016/j.carbon.2011.05.040

 

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