@article{oai:soar-ir.repo.nii.ac.jp:00012350, author = {Kubota, Satoshi and Maruyama, Takafumi and Nishikiori, Hiromasa and Ito, Fuyuki and Tanaka, Nobuaki and Endo, Morinobu and Fujii, Tsuneo}, issue = {2-3}, journal = {JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY}, month = {Feb}, note = {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., Article, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY. 218(2-3):226-230 (2011)}, pages = {226--230}, title = {Fluorescence properties of aromatic amine adsorbed on metallic and semiconducting single-walled carbon nanotubes}, volume = {218}, year = {2011} }