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arXiv · 0809.4498

Doping single wall carbon nanotubes with differently charged porphyrins

G. A. M. Sáfar·H. B. Ribeiro·C. Fantini·F. O. Plentz·A. P. Santos·G. DeFreitas-Silva·Y. M. Idemori
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Abstract

Photoluminescence (PL) measurements of porphyrin-doped single wall carbon nanotubes (SWNT) were studied in sodium dodecylbenzenesulfonate (NaDDBS) aqueous dispersions. The PL spectra were used to draw PL maps were the maxima corresponds to absorption-emission excitonic processes related to (E11, E22) first Van Hove singularities of the SWNT electronic structure. The influence of the net charge of the porphyrin was a determinant factor in the energy map maximum shifts (EMMS) compared to the energy map of a pristine NaDDBS/SWNT dispersion. A non-interacting porphyrin is used as a reference to discard the influence of the dielectric constant of the medium in the EMMS.

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G. A. M. Sáfar, H. B. Ribeiro, C. Fantini, F. O. Plentz, A. P. Santos, G. DeFreitas-Silva, Y. M. Idemori. 2008-09-25. Doping single wall carbon nanotubes with differently charged porphyrins. https://arxiv.org/abs/0809.4498

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