Nanoscale Characterization of Individual Horizontally Aligned Single-Walled Carbon Nanotubes
G.Nemeth, D. Datz, H. M. Toháti, A. Pekker, K. Otsuka, T. Inoue, S. Maruyama and K. Kamarás
Phys. Status Solidi B, 1700433 (2017)
One of the most challenging tasks in nanotube research is to identify the
different electronic types of nanotubes for device fabrication. The implementation
of standard spectroscopy techniques at the single-tube level has
remained a great task due to small nanotube signal and low spatial
resolution. Scattering-type scanning near-field optical microscopy (s-SNOM)
yields information on the optical characteristics of the sample with high
spatial resolution. We have already demonstrated that this method is able to
distinguish between different electronic types of carbon nanotube bundles
based on their optical properties in the infrared region. Now we applied the
same method to characterize individual horizontally aligned single-walled
carbon nanotubes (SWCNTs).