Supramolecular Discrimination of Carbon Nanotubes According to Their Helicity

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• 作者：Renaud Marquis ; Carla Greco ; Izabela Sadokierska ; Sergei Lebedkin ; Manfred M. Kappes ; Thierry Michel ; Laurent Alvarez ; Jean-Louis Sauvajol ; Sté ; phane Meunier ; Charles Mioskowski
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：July 2008
• 年：2008
• 卷：8
• 期：7
• 页码：1830 - 1835
• 全文大小：1781K
• 年卷期：v.8,no.7(July 2008)
• ISSN：1530-6992

文摘

Adsorption of specifically designed and geometrically constrained polyaromatic amphiphiles on single-walled carbon nanotubes (SWNTs) was found to be selective of the nanotube helicity angle. Starting from the same SWNT mixture, photoluminescence and resonant Raman spectroscopies show that a pentacenic-based amphiphile leads to the solubilization of armchair SWNTs and that a quaterrylene-based amphiphile leads to the solubilization of zigzag SWNTs. The results were predicted by the design of the two amphiphiles and are consistent with a supramolecular recognition of the nanotube graphene-type atomic structure by the aromatic part of the molecules through optimized π−π-stacking interactions.