Die u:cris Detailansicht:

Comprehensive spectroscopic characterization of high purity metallicity-sorted single-walled carbon nanotubes

Autor(en)

Marianna V. Kharlamova, Christian Kramberger, Markus Sauer, Kazuhiro Yanagi, Thomas Pichler

Abstrakt

We have performed a thorough characterization of 1.4 nm-diameter

single-walled carbon nanotubes (SWCNTs) separated according to their

metallicity by optical absorption (OAS), X-ray photoelectron (XPS),

ultraviolet photoelectron (UPS), and multifrequency Raman spectroscopy.

The OAS, XPS, and UPS data prove a high purity (99%)

of SWCNTs. The C 1s core level XPS spectra of the separated nanotubes

show different spectral widths, asymmetry, and peak positions. The UPS

spectra of the samples demonstrate clearly defined van Hove

singularities. Significant differences are observed in the Raman

spectra of the separated nanotubes. Our findings suggest that for

further advances in SWCNT metallicity sorting, Raman spectroscopy has

to be applied to assess purity levels beyond the detection limits of

OAS, XPS, and UPS.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Tokyo Metropolitan University

Journal

Physica Status Solidi. B: Basic Research

Band

252

Seiten

2512–2518

Anzahl der Seiten

ISSN

0370-1972

DOI

https://doi.org/10.1002/pssb.201552251

Publikationsdatum

11-2015

Peer-reviewed

ÖFOS 2012

205017 Werkstofftechnik

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Condensed Matter Physics

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