▎ 摘　　要

NOVELTY - Graphene-based dispersion comprises 0.0001-20 wt.% concentration of graphene comprising a mixture of single layer graphene and few layers graphene. USE - The dispersion is useful in substrate e.g. conductive and non-conductive material (claimed), and field of physicochemistry, material science and solution chemistry. ADVANTAGE - The dispersion: has homogeneity, stability, mechanical strength, antimicrobial property, thermal conductivity, electrical conductivity, UV blocking property and gas barrier property are pre-requisites; is easy to prepare and homogeneous; and can be stably stored for long periods of time. DETAILED DESCRIPTION - INDEPENDENT CLAIMs are also included for: preparing the graphene-based dispersion, comprising dispersing graphene and/or its derivatives in a liquid medium and subjecting the dispersion to mixing in a high shear mixer to obtain the graphene-based dispersion; ubstrate comprising the graphene-based dispersion the graphene-based dispersion, where the substrate is conductive and non-conductive material; and preparing substrate comprising applying the graphene-based dispersion to the substrate by dipping, coating, dyeing, brushing, painting, spraying and printing to obtain the substrate comprising the graphene-based dispersion.