Single-walled carbon nanotubes, confined to lines of a few micron widths on line patterned substrates
prepared via micro-contact printing, are studied using Raman spectroscopy. For the CNT
tangential mode, the so-called G-band, the Raman intensity s...
Single-walled carbon nanotubes, confined to lines of a few micron widths on line patterned substrates
prepared via micro-contact printing, are studied using Raman spectroscopy. For the CNT
tangential mode, the so-called G-band, the Raman intensity shows distinct anisotropy that changes
with the polarization directions of the incident and the scattered photons. The anisotropy is more
distinct for samples with line-patterns of narrower line-width, which indicates an increasing degree
of CNT alignment along the patterned line direction with decreasing patterned line-width.