Nanomaterials are continually evolving with time for various applications, including being used as reinforcements in nanocomposites. Nanocomposites may be viewed as abundant interface nanoscale systems having the ability to manipulate length-scales fundamentally important to many physical properties. Sometimes, this can impart multiple functions, which has led to a rapidly expanding scope and arena of application for these materials. In line with typical composite logic, the function of nanoparticles in a matrix is dependent on: (i) nanoparticle-matrix interaction and (ii) nanoparticle distribution in the matrix. This is with regard to any material property of the nanocomposites, be it crystallographic and/or electronic structure related.