Curved nanocarbon materials: probing the curvature and topology effects using phonon spectra

Journal Article · Tue Jan 01 00:00:00 EST 2008 · J. Raman Spectroscopy

OSTI ID:960990

Saxena, Avadh Baheri ^[1]; Gupta, Sanju ^[2]

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1. Los Alamos National Laboratory
2. UNIV OF MISSOURI

In spite of detailed structural characterization of nanoscale carbons, they still possess some features that are not entirely understood particularly in terms of topological characteristics. By means of resonance Raman spectroscopy, we elucidated the notion of global topology and curvature by determining the prominent Raman bands variation for various carbon nanostructures including tubular (single-, double- and multiwalled nanotubes, peapod), spherical (hypo- and hyperfullerenes, onion-like carbon) and complex (nanocones, nanohorns, nanodisks and nanorings) geometries. This knowledge points to an unprecedented emergent paradigm of global topology/curvature {yields} property {yields} functionality relationship.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 960990
• Report Number(s): LA-UR-08-06905; LA-UR-08-6905; TRN: US201008%%889
• Journal Information: J. Raman Spectroscopy, Vol. 40, Issue 9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON
MATERIALS
NANOSTRUCTURES
NANOTUBES
PHONONS
RAMAN SPECTROSCOPY
RESONANCE
SPECTRA
TOPOLOGY
VARIATIONS
YIELDS