Three Dimensional Interconnected Porous Graphene-Based Thermal Interface Materials

A method of producing a thermal interface material, the method comprising:

• providing a three-dimensional interconnected porous graphene (3D-IPG) foam structure constructed of three-dimensional interconnected graphene sheets formed as a plurality of monolayers by chemical vapor deposition (CVD) from a sacrificial template, the graphene sheets having an interconnection architecture;
• and
• placing the 3D-IPG porous foam structure at an interface between a heat source and a heat sink and applying pressure across the interface,
• wherein the 3D-IPG foam structure provides a flexible interconnection architectures, allowing the 3D-IPG to maintain a high interfacial thermal conductance by the 3D-IPG filling a gap between a heat source and a heat sink across the interface, thereby reducing thermal resistance between the mating surfaces and providing high thermal conductivity and a high surface area to 3D-IPG function as an effective heat dissipater, heat sink or heat convector.