In 1959, physicist Richard Feynman gave a historical lecture: `There's Plenty of Room at the Bottom'. Even after sixty years, the exciting field of nanotechnology is exploding. When nanomaterials are in use, these will definitely undergo externally applied loading. In real-life situation, fracture in nanomaterials will always be complex in nature. However, most of the studies so far are on simplified systems. Hence we have studied fracture of graphene under complex loading. Nanomaterials have enormous application in lubrication industries. Friction between bilayers for three different cases: graphene/graphene, graphene/h-BN, and h-BN/h-BN have been investigated. We showed how could we tune friction by hydrogen termination. Another important application of nanomaterials is nanomedicine. We discussed how graphene could be used for drug-delivery and environmental barrier applications. Besides nano medicine and lubrication, during the past two decades, the demand for the storage of electrical energy has mushroomed both for portable applications and for static applications. We considered two kinds of problems: Atomistic mechanism of phase boundary formation during initial lithiation in crystalline silicon and 2D materials for energy storage. We discovered defective graphene would be a potential anode materials for different ion batteries and analyzed the underlying charge-transfer mechanism governing the enhanced adsorption of adatoms. However, the existing nanomaterials have several limitations. Hence in recent years, tremendous attentions have been given towards newly synthesized emerging nanomaterials. Among these, we studied surface terminated germanene as Topological Insulator (TI) and electronic properties of 1T/2H interface of Molybdenum Disulphide (MoS2).
DATTA, DIBAKAR,
"Topics in Nanomechanics, Energy Storage Systems, and Emerging Nanomaterials"
(2015).
Mechanics of Solids Theses and Dissertations.
Brown Digital Repository. Brown University Library.
https://doi.org/10.7301/Z0QJ7FP3
