Charge dynamics in transparent single-walled carbon nanotube films from optical transmission measurements
Charge dynamics in transparent single-walled carbon nanotube films from optical transmission measurements
We report the transmission over a wide frequency range (far infrared - visible) of pristine and hole-doped, free-standing carbon nanotube films at temperatures between 50 K and 300 K. Optical constants are estimated by Kramers-Kronig analysis of transmittance. We see evidence in the far infrared for a gap below 10 …