Flexible carbonized cellulose/single-walled carbon nanotube films with high conductivity.

A carbonized cellulose/single-walled carbon nanotube composite film (cell/SWCNT) was prepared with well-dispersed cellulose/SWCNT doped in N-methylmorpholine N-oxide (NMMO) monohydrate. After carbonization at 400 °C, the SWCNT content at electrical threshold of the cell/SWCNT nanocomposite decreased from 2 wt% to 1 wt%, and the electrical conductivity of the cell/SWCNT(1 wt%) nanocomposite (0.6 S cm) increased by more than 6 orders of magnitude compared to that of pure carbonized cellulose (1.