期刊
NANO LETTERS
卷 13, 期 2, 页码 697-702出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl304371x
关键词
Coherent anti-Stokes Raman microscopy; carbon nanotubes; purity; defect; maximum entropy method
类别
资金
- Conselho Nacional de Pesquisa e Desenvolvimento Tecnologico (CNPq)
- Deutscher Akademischer Austauschdienst (DAAD)
- BMBF-Project (MEDICARS) [FKZ: 13N10778]
- Seventh European Framework Programme (CROSS TRAP) [244068]
Mapping of defects in bulk samples of single-walled carbon nanotubes (SWNT) is performed via multiplex coherent anti-Stokes Raman microscopy. The D and G vibrational bands are acquired simultaneously, and their relative amplitude is used as a criterion to quantify the local purity in spin-coated SWNT samples. We observe that defects induced by oxidation are related to the spatial dispersion of nanotubes in a solid distribution.
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