Characteristics of Ball Milled CNT-Graphene Hybrid Nanoparticle and the Sheet Resistivity of PET Film Coated with Nanoparticles

Abstract

In this study, as a coating agent for a conductive film, CNT-graphene hybrid nanoparticle, which is a composite of carbon nanotube (CNT) and graphene, was prepared according to the content ratio of the ball and nanoparticle and the milling time. The optimum average particle size of the CNT-graphene nanoparticle was obtained when the CNT and graphene content ratio was 1:1, the ball and nanoparticle content ratio was 15:1, and the milling time was 3 to 5 hours. When only graphene was used, the average particle size in the dispersion solution was 0.5 to 1.7 mu m, and the surface resistivity of the conductive film was 10(9)-10(10) Omega/sq. The average particle size of the dispersion solution using the CNT-graphene hybrid nanoparticle was 300-400 nm, and the surface resistivity of the conductive film was 10(4) Omega/sq. The surface resistivity of the conductive film was increased to 10(5)-10(6) Omega/sq for 200 nm of hybrid nanoparticle.