Journal
NANO LETTERS
Volume 10, Issue 5, Pages 1764-1768Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl100240n
Keywords
Carbon nanotube; graphene; cycloaddition reaction; scanning tunneling microscopy
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Funding
- Portuguese Foundation for Science and Technology [POCI/QUI/59835/2004, SFRH/BSAB/789/2008, SFRH/BD/32189/2006]
- Danish National Research Foundation
- Danish Ministry for Science, Technology, and Innovation through the iNANO Center
- Danish Research Councils
- Carlsberg Foundation
- Villum Kahn Rasmussen Foundation
- European Research Council
- Fundação para a Ciência e a Tecnologia [SFRH/BD/32189/2006, SFRH/BSAB/789/2008, POCI/QUI/59835/2004] Funding Source: FCT
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Carbon nanotubes (CNTs), functionalized by a cycloaddition reaction, were studied by ultrahigh vacuum scanning tunneling microscopy (STM). The STM images provided evidence for partial or total unzipping of the outer CNT layer. The formation of graphene ribbons was triggered by the STM tip, under specific operating conditions. A model for the unzipping is proposed, based on the perturbation of the pi-conjugation along the CNT surface induced by the cycloaddition reaction.
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