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Graphene-Decorated Substrates and Interfacial Properties

posted Jun 14, 2013, 8:33 AM by Timothy Fisher   [ updated Jun 16, 2013, 5:51 AM by Tim Fisher ]

Student: Anurag Kumar

Faculty: Tim Fisher

Sponsor: Raytheon

Summary: Microwave plasma CVD (MPCVD) growth of graphene and graphene based nanostructures has been developed. Very short growth time makes MPCVD an attractive process for large scale graphene growth. The same process can be also be used to produce doped graphene. Catalyst-free MPCVD synthesis of multi-layer graphene extensions from carbon fiber offers a unique possibility of minimizing interfacial losses in transport applications. Effect on thermal interface resistance is being studied using the 3ω method. Graphene sheets grown on CNTs also increase the mechanical stiffness and elastic recoverability of a vertically aligned CNT array.  Further, vertically oriented 2D graphene sheets on flat substrates serve as a unique template for high density nanoparticle deposition. Such substrates have found promising application in surface enhanced Raman spectroscopy (using Au and Ag nanoparticles) and electrochemical sensing (using Pt nanoparticles).

Representative Papers: