(n,m) Assignments of Metallic Single-Walled Carbon Nanotubes by Raman   Spectroscopy: The Importance of Electronic Raman Scattering

doi:10.1021/acsnano.6b04453

CORC > 北京大学 > 信息科学技术学院

	(n,m) Assignments of Metallic Single-Walled Carbon Nanotubes by Raman Spectroscopy: The Importance of Electronic Raman Scattering
	Zhang, Daqi ; Yang, Juan ; Li, Meihui ; Li, Yan
刊名	ACS NANO
	2016
关键词	single-walled carbon nanotubes electronic Raman scattering resonant Raman spectroscopy chirality assignments M-ii splitting RAYLEIGH-SCATTERING CHIRAL STRUCTURE FLUORESCENCE TRANSITIONS ABUNDANCE CATALYSTS GRAPHENE SPECTRA GROWTH MODES
DOI	10.1021/acsnano.6b04453
英文摘要	In this work, we report an accurate and convenient method that can be used to assign the chirality of all metallic single-walled carbon * nanotubes (M-SWNTs). This method is designed based on the electronic Raman scattering (ERS) features, which are resonantly enhanced at the corresponding excitonic transition energies (M-ii(+) and M-ii(-)). Using this method, we are able to accurately determine the electronic property M-ii, with the resolution of a vibrational Raman spectroscopy (similar to 0.3 meV), which is significantly higher than that of the electronic spectroscopies (similar to 3 meV). We use the M-11 splitting value, which is found insensitive to environmental changes, as a universal criteria for (n,m) assignments in various environments. As an illustrative example, simply using a commercialized Raman spectrometer with two laser lines (1.959 and 2.330 eV), we are able to unambiguously assign 18 metallic chiralities with M-11 in the 1.6-2.3 eV range in our samples. This method provides an accurate database of M-ii's in a similar way as photoluminescence excitation spectroscopy does for S-ii's. It can facilitate further systematic studies on the properties of MSWNTs with defined chirality.; Ministry of Science and Technology of China [2016YFA0201904]; National Natural Science Foundation of China [21631002, U1632119, 91333105]; SCI(E); ARTICLE; yang_juan@pku.edu.cn; yanli@pku.edu.cn; 12; 10789-10797; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458198]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Daqi,Yang, Juan,Li, Meihui,et al. (n,m) Assignments of Metallic Single-Walled Carbon Nanotubes by Raman Spectroscopy: The Importance of Electronic Raman Scattering[J]. ACS NANO,2016.
APA	Zhang, Daqi,Yang, Juan,Li, Meihui,&Li, Yan.(2016).(n,m) Assignments of Metallic Single-Walled Carbon Nanotubes by Raman Spectroscopy: The Importance of Electronic Raman Scattering.ACS NANO.
MLA	Zhang, Daqi,et al."(n,m) Assignments of Metallic Single-Walled Carbon Nanotubes by Raman Spectroscopy: The Importance of Electronic Raman Scattering".ACS NANO (2016).