Low Vacuum Annealing of Cellulose Acetate on Nickel Towards Transparent Conductive CNT–Graphene Hybrid Films

Autor: Eiji Rokuta, Yuki Matsuoka, Rajanish N. Tiwari, Duc Dung Nguyen, Yu-Lun Chueh, Yu Ze Chen, Masamichi Yoshimura, Goh Hashimoto
Rok vydání: 2014
Předmět:
Zdroj: ACS Applied Materials & Interfaces. 6:9071-9077
ISSN: 1944-8252
1944-8244
DOI: 10.1021/am5003469
Popis: 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.
Databáze: OpenAIRE