On the Single Wall Carbon Nanotube Surface Plasmon Stability

Jaime Silva; Bruce F. Milne; Fernando Nogueira

doi:10.1051/epjconf/202023305009

On the Single Wall Carbon Nanotube Surface Plasmon Stability

Jaime Silva^* (Corresponding Author), Bruce F. Milne^* (Corresponding Author), Fernando Nogueira^* (Corresponding Author)

^*Corresponding author for this work

Chemistry

University of Coimbra

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Abstract

The physics of surface plasmons has a long tradition in condensed matter theory but as the dimension of the systems reaches the nano scale, new effects appear. In this work, by calculating the absorption spectra of a single wall carbon nanotube, using time dependent density functional theory, the effect of adding/removing electrons on the surface plasmon energy is studied. It is shown that removing electrons from the single wall carbon nanotube does not affect the surface plasmon energy peak. In contrast, adding electrons to the single wall carbon nanotube will redshift the plasmonic peak energy, an effect that is explained by an increase of the electron effective mass.

Original language	English
Article number	05009
Number of pages	6
Journal	EPJ Web Conf.
Volume	233
DOIs	https://doi.org/10.1051/epjconf/202023305009
Publication status	Published - 16 Apr 2020

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Acknowledgements

We thank the Laboratory for Advanced Computing (LCA) of the University of Coimbra for the computer time allocated to this project.

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Cite this

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abstract = "The physics of surface plasmons has a long tradition in condensed matter theory but as the dimension of the systems reaches the nano scale, new effects appear. In this work, by calculating the absorption spectra of a single wall carbon nanotube, using time dependent density functional theory, the effect of adding/removing electrons on the surface plasmon energy is studied. It is shown that removing electrons from the single wall carbon nanotube does not affect the surface plasmon energy peak. In contrast, adding electrons to the single wall carbon nanotube will redshift the plasmonic peak energy, an effect that is explained by an increase of the electron effective mass.",

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AB - The physics of surface plasmons has a long tradition in condensed matter theory but as the dimension of the systems reaches the nano scale, new effects appear. In this work, by calculating the absorption spectra of a single wall carbon nanotube, using time dependent density functional theory, the effect of adding/removing electrons on the surface plasmon energy is studied. It is shown that removing electrons from the single wall carbon nanotube does not affect the surface plasmon energy peak. In contrast, adding electrons to the single wall carbon nanotube will redshift the plasmonic peak energy, an effect that is explained by an increase of the electron effective mass.

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On the Single Wall Carbon Nanotube Surface Plasmon Stability

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