Synergistic effect on electrical conductivity of few-layer graphene/multi-walled carbon nanotube paper

A unique concept of making a paper from few-layer graphene (FLG) and multi-walled carbon nanotube (MWCNT) was explored. In the FLG/MWCNT paper, an entangled network of MWCNTs was formed to bridge the gap between FLG. The ratio of FLG and MWCNT in the paper was varied from FLG-dominated to MWCNT-dominated in order to study the efficiency in improving electrical conductivity. At a high weight fraction of MWCNTs in the paper, MWCNTs were oriented between FLG. A synergistic effect on electrical conductivity between two-dimensional FLG and one-dimensional MWCNT was demonstrated in the hybrid paper.