Fluorescence properties of aromatic amine adsorbed on metallic and semiconducting single-walled carbon nanotubes
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概要
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Semiconducting single-walled carbon nanotubes (SWNTs) have been enriched by 1-aminopyrene treatment of the mildly oxidized SWNTs due to removal of metallic SWNTs having a higher affinity for 1-aminopyrene. The enrichment was caused by the differences in the adsorption properties of 1-aminopyrene on the metallic and semiconducting SWNTs. The fluorescence properties of 1-aminopyrene adsorbed on the metallic and semiconducting SWNTs have been investigated in order to clarify its adsorption mechanism. 1-Aminopyrene was adsorbed on the metallic SWNTs through the interaction of the amino group with the graphene surface and through a hydrogen bonding interaction between the amino group and the carboxyl group on the graphene surface. On the other hand, in the case of semiconducting SWNTs, 1-aminopyrene was adsorbed through a pi-pi interaction on the graphene surface in addition to the hydrogen bonding interaction with the carboxyl groups.
- ELSEVIER SCIENCE SAの論文
- 2011-02-12
ELSEVIER SCIENCE SA | 論文
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