Investigations Of Graphene, Noble Metal Nanoparticles And Related Nanomaterials
Abstract
The thesis consists of four parts of which part 1 presents a brief overview of
nanomaterials. Parts 2, 3 and 4 contain results of investigations of graphene, nanofilms
of noble metal nanoparticles and ZnO nanostructures respectively.
Investigations of graphene are described in Part 2 which consists of six chapters.
In Chapter 2.1, changes in the electronic structure and properties of graphene induced
by molecular charge-transfer have been discussed. Chapter 2.2 deals with the results of a study of the interaction of metal and metal oxide nanoparticles with graphene.
Electrical and dielectric properties of graphene-polymer composites are presented in
Chapter 2.3. Chapter 2.4 presents photo-thermal effects observed in laser-induced
chemical transformations in graphene and other nanocarbons system. Chapter 2.5
describes the mechanical properties of polymer matrix composites reinforced by fewlayer graphene investigated by nano-indentation. The extraordinary synergy found in the mechanical properties of polymer matrix composites reinforced with two
nanocarbons of different dimensionalities constitute the subject matter of Chapter 2.6.
Investigations of noble metal nanoparticles have been described in Part 3. In
Chapter 3.1, ferromagnetism exhibited by nanoparticles of noble metals is discussed in
detail while Chapter 3.2 deals with surface-enhanced Raman scattering (SERS) of
molecules adsorbed on nanocrystalline Au and Ag films formed at the organic–aqueous
interface.
Factors affecting laser-excited photoluminescence from ZnO nanostructures are
examined in great detail in Part 4.