Fabrication of a large scale transparent conducting film using transformed few-layered graphene nanoribbons obtained from unzipping of single wall carbon nanotubes

Abstract

A large scale transparent conducting film has been fabricated using transformed few-layered graphene nanoribbons (FGNRs) obtained from unzipping of single wall carbon nanotubes and poly(3,4-ethylenedioxythiophene). FGNRs are fabricated from an unzipping process of single-walled carbon nanotubes with a high direct current pulse through a pulsed current sintering process. From control of the film thickness and conductivity, the optical transmittance values of films at a wavelength of 550 nm were 84% and 92%, and have sheet resistances of 150 and 2000 Omega sq(-1). High resolution transmission electron microscopy, high resolution Raman spectroscopy, X-ray photoelectron spectroscopy, transmittance and electrical conductivity were used for the investigation of the FGNRs and FGNR transparent electrodes to characterize the films.