Low vacuum annealing of cellulose acetate on nickel towards transparent conductive CNT-graphene hybrid films.
We report a versatile method based on low vacuum annealing of cellulose acetate on nickel (Ni) surface for rapid fabrication of graphene and carbon nanotube (CNT)-graphene hybrid films with tunable properties. Uniform films mainly composed of tri-layer graphene can be achieved via a surface precipitation of dissociated carbon at 800 °C for 30 seconds under vacuum conditions of ∼0.6 Pa. The surface precipitation process is further found to be efficient for joining the precipitated graphene with pre-coated CNTs on the Ni surface, consequently, generating the hybrid films. As expected, the hybrid films exhibit substantial opto-electrical and field electron emission properties superior to their individual counterparts. The finding suggests a promising route to hybridize the graphene with diverse nanomaterials for constructing novel hybrid materials with improved performances.
Toyota Technological Institute , 2-12-1 Hisakata, Tempaku, Nagoya 468-8511, Japan.
Duc Dung
DD
Nguyen
Rajanish N
RN
Tiwari
Yuki
Y
Matsuoka
Goh
G
Hashimoto
Eiji
E
Rokuta
Yu-Ze
YZ
Chen
Yu-Lun
YL
Chueh
Masamichi
M
Yoshimura