NOVELTY - Substrate for flexible photoelectric device comprises a flexible substrate and a conductive layer, where the structural composition of substrate comprises: (a) the flexible substrate as an UV solidified organic silicone adhesive, and the conductive layer as thin carbon nanotube, whose gap is filled with graphene; or (b) the flexible substrate as a graphene-doped UV solidified organic silicone adhesive, and the conductive layer as thin carbon nanotube, whose gap is filled with graphene-doped UV solidified organic silicone adhesive.    USE - Used as a substrate for flexible photoelectric device.    ADVANTAGE - The substrate solves the problem of flatness of thin carbon nanotube surface; and increases the binding force between the thin carbon nanotube and the flexible substrate, and improves the conductivity of the conductive layer and the separation ability of the base plate to water and oxygen.    DETAILED DESCRIPTION - Substrate for flexible photoelectric device comprises a flexible substrate and a conductive layer, where the structural composition of substrate comprises: (a) the flexible substrate as an UV solidified organic silicone adhesive, and the conductive layer as thin carbon nanotube, whose gap is filled with graphene; or (b) the flexible substrate as a graphene-doped UV solidified organic silicone adhesive, and the conductive layer as thin carbon nanotube, whose gap is filled with graphene-doped UV solidified organic silicone adhesive, where the UV solidified organic silicone adhesive comprises (in wt.%) a photosensitive polysiloxane (92-99.5), a photoinitiator (0.1-5) and a diluent (0.4-6) and an auxiliary agent. The thickness of carbon nanotube layer is less than or equal to l00 nm. An INDEPENDENT CLAIM is also included for preparing the substrate for flexible photoelectric device, comprising: (i) cleaning the rigid base plate, whose surface roughness is less than 1 nm, and blow drying using dry nitrogen; (ii) carrying out spin coating or spray coating or self-assembling or spray ink printing or screen printing to prepare the carbon nanotube layer on the clean rigid base plate; (iii) spin coating or spray coating the carbon nanotube layer with graphene-doped UV solidified organic silicone adhesive, or initially spin coating or drip painting or spraying graphene, and then spin coating or drip-painting or spraying the UV solidified organic silicone adhesive; (iv) carrying out UV light solidifying process to the drip-painting surface for 30 seconds; (v) peeling off the carbon nanotube layer and the solidified UV curable silicone adhesive layer or the UV curable organic silicon adhesive layer doped with graphite from the rigid base plate surface, and forming the flexible conductive substrate; and (vi) testing the transmittance, electrical conductivity and surface appearance of the flexible conductive substrate.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the substrate for flexible photoelectric device.