Graphene based heat sink and method for manufacturing the heat sink

A method of manufacturing a graphene-based heat sink, the method comprising:

• providing a first graphene film;
• providing a second graphene film;
• arranging a layer of nanoparticles on a surface of the first and second graphene film, wherein the nanoparticles are configured to improve an adhesion strength between the first and second graphene films;
• arranging an adhesive on the first graphene film;
• attaching the second graphene film to the first graphene film by means of the adhesive and the layer of nanoparticles;
• forming a laminated graphene film comprising a predetermined number of graphene film layers by repeating the steps of arranging a layer of nanoparticles, arranging an adhesive and attaching a graphene film, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity;
• assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block;
• and
• removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.