Raman Spectroscopy of 3-D Graphene

Purified powders and three dimensional freestanding graphene foam were assessed analytically through Raman Spectroscopy. Samples were tested in a number of solvents in order to identify the most stable dispersions. Purified powders were shown to be inferior to the ``as received'' 3D graphene foam as quantified through the above analytical methods. Graphene foams are reported here to represent a highly pure form of graphene that may be dispersed in solution in order to form thin films that retain the same quantifiable qualities as the solid starting material.