Preferential destruction of metallic single-walled carbon nanotubes by laser irradiation.
Upon laser irradiation in air, metallic single-walled carbon nanotubes (SWNTs) in carbon nanotube thin film can be destroyed in preference to their semiconducting counterparts when the wavelength and power intensity of the irradiation are appropriate and the carbon nanotubes are not heavily bundled. Our method takes advantage of these two species' different rates of photolysis-assisted oxidation, creating the possibility of defining the semiconducting portions of carbon nanotube (CNT) networks using optical lithography, particularly when constructing all-CNT FETs (without metal electrodes) in the future.
Huang
Houjin
H
Materials Laboratories, Sony Corporation, Atsugi Tec. No.2 4-16-1 Okata Atsugi, Kanagawa 243-0021 Japan. huanghou@notes.udayton.edu
Maruyama
Ryuichiro
R
Noda
Kazuhiro
K
Kajiura
Hisashi
H
Kadono
Koji
K