By continuously varying the structure of graphene oxide paper (PRGP) using Joule heating annealing, we are able to tune its electrical conductivity (?) and thermal diffusivity (?) in a very wide range: more than three orders magnitude for ? (186–503009 S/m) 10-fold ? (8.31 × 10?7 m2/s 9.31 10?6 m2/s). Excellent coherency-linear relationship between is discovered although they sustained by diffe...