Width-controlled sub-nanometer graphene nanoribbon films synthesized by radical-polymerized chemical vapor deposition.
Radical-polymerized chemical vapor deposition, a new bottom-up method, was developed to produce graphene nanoribbons (GNRs) efficiently, despite the use of extremely low vacuum. Using this technique, a systematic synthesis of a multilayered high-density array of width-controlled sub-1 nm GNRs on a metal surface, with width-dependent band gap, is made possible. GNR films transferred onto insulating substrates behave as an excellent photoconductor.
Institute of Advanced Energy, Kyoto University, Uji, 611-0011, Kyoto, Japan.
Hiroshi
H
Sakaguchi
Yoshiyasu
Y
Kawagoe
Yoshitaka
Y
Hirano
Taku
T
Iruka
Maki
M
Yano
Takahiro
T
Nakae
bottom-up growth; graphene nanoribbon films; radical-polymerized chemical vapor deposition; surface polymerization; transfer process