Non-Covalent Functionalization of Graphene and Multiwalled Carbon Nanotubes Composites for Transparent Conductive Films

Abstract:

In this paper, dry ice is converted into few-layer graphene, which can be dispersed stably in N, N-Dimethylformamide (DMF) by adding pyrene-1-boronic as a stabilizer that non-covalently functionalizes the surface of graphene to obtain homogeneous colloidal suspensions. Moreover, we make use of vacuum filtration transferring for fabricating transparent conducting graphene films by incorporating multiwalled carbon nanotubes (MWNTs). The increased conductivity is ascribed to the formation of a more efficient network. Here a transmittance of 81% at 550 nm and a sheet resistance as low as 38.17 KΩ/sq are obtained.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 921-925
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.921
• Online since: March 2014
• Authors: Chun Lin Zhao*, Li Xing, Jun Hui Xiang, Hua Zheng Sai, Zhen You Li, Fei Li
• Keywords: Dry Ice, Graphene, Multi-Walled Carbon Nanotube (MWCNT), Pyrene-1-Boronic, Vacuum Filtration Transferring

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