Table 1. Mechanical and electrical properties of reduced GGO fibers at different drawing ratios.

Drawing ratio	Tensile strength [MPa]	Elongation at break [%]	Young’s modulus [GPa]	Conductivitya [S cm−1]
1.2	239.3	2.7	12.1	17.0
1.0	202.4	3.2	8.2	16.7
0.8	145.7	4.9	4.8	6.8
0.6	119.4	7.2	2.4	6.0

^aElectrical conductivities of graphene fibers reduced by HI aqueous solution.