Fig. 1

Relaxation diagram of graphene oxide liquid crystals. a, c Schematic illustrations of GO sheets distribution and corresponding POM images of I (a) and N phase (c), scale bars, 5 mm. b, τ of annihilation of re-orientated grain as a function of c. Dots are measured τ and solid lines are fittings by τ = Bc^ρ (See Methods). The red dash line indicates the τ transition, synchronous with I-N transition. d, e POM images for a tracking grain in I phase (d), which completely relaxes in a short time (~40 s), and a grain in N phase (e) with negligible relaxation after 10⁶ s, scale bars, 1 mm