▎ 摘　　要

NOVELTY - The composite structures (500) of graphene and polymer comprise a polymer structure (521, 522) having a three-dimensional shape, and a graphene layer (531) provided on the polymer structure. The graphene layer covers a part of the polymer structure. The composite structure has a first height determined from a baseline, a second height determined from the baseline, and sub-structures. The first height is the same as or greater than a thickness of the graphene layer, and the second height is greater than the first height. Each sub-structure has the first height and the second height. USE - The composite structures of graphene and polymer are useful in a thermoelectric element (claimed), a capacitor, a sensor, and an optical element. ADVANTAGE - The composite structures of graphene and polymer exhibit good thermal conductivity and electric conductivity, high opacity, excellent chemical stability, large surface area, and increased breaking strength and tensile modulus. DETAILED DESCRIPTION - The composite structures (500) of graphene and polymer comprise a polymer structure (521, 522) having a three-dimensional shape, and a graphene layer (531) provided on the polymer structure. The graphene layer covers a part of the polymer structure. The composite structure has a first height determined from a baseline, a second height determined from the baseline, and sub-structures. The first height is the same as or greater than a thickness of the graphene layer, and the second height is greater than the first height. Each sub-structure has the first height and the second height. The polymer structure has an uneven surface, and the graphene layer is further provided on the uneven surface. The polymer structure has a first thickness and a second thickness. The first thickness is zero or greater, and the second thickness is greater than the first thickness. The graphene layer has a single-layer structure or a multi-layer structure. The polymer structure and/or the graphene layer is doped with impurities. The composite structures are stacked vertically on one another. The graphene layer of one of the composite structures is partially present in direct contact with the graphene layer of its neighboring composite structure. The polymer structure has an elongated protrusion of which the thickness corresponds to the second height, and an orientation of the longitudinal axis of the elongated protrusion of one composite structure is not same as the orientation of the longitudinal axis of other elongated protrusion of other composite structures. INDEPENDENT CLAIMS are included for: (1) a thermoelectric element; and (2) a method of manufacturing a composite structure of graphene and polymer. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a composite structure of graphene and polymer. Composite structure (500) Substrate (510) Polymer structures (521,522) Graphene layer. (531)