Nanotechnology has potential applications for defence, especially in the field of sensors, transducers, nanorobotics, nanoelectronics, memory storage, propellants, & explosives to enhance the performance of devices and weapon systems. The research and development activities of nanotechnology are increasing globally at a rapid rate. Many programs have been launched by individual countries or joi...

Dynamical structural defects exist naturally in a wide variety of solids. They fluctuate temporally and hence can deteriorate the performance of many electronic devices. Thus far, the entities of these dynamic objects have been identified to be individual atoms. On the other hand, it is a long-standing question whether a nanocrystalline grain constituted of a large number of atoms can switch, a...

Nanodevices have terrible properties for building Boolean logic systems: high defect rates, high variability, high death rates, drift, and (for the most part) only two terminals. Economical assembly requires that they be dynamical. We argue that strategies aimed at mitigating these limitations, such as defect avoidance/reconfiguration, or applying coding theory to circuit design, present severe...

The scope of this thesis is the coherence of spins in carbon-based nanodevices. The motivation for this study are the promising spin-related properties of carbon-based materials, such as weak spin-orbit and hyperfine interaction, which are advantageous for achieving long spin coherence times. In addition, carbon based materials such as graphene and carbon nanotubes have a low mass density and h...

Synthesis, structure, properties, main reactions, and applications of graphenes are reviewed. It is shown that these compounds possess unique properties, which can be successfully used for a series of applications, mainly as nanodevices and composite materials.

I N THE quest of a potential alternative to CMOS at the end of its roadmap, multitude of research efforts have been directed towards investigating novel devices with unique characteristics. These emerging devices hold tremendous potential in achieving higher integration density (in the order of devices/cm), higher performance, and increased energy efficiency for computation. On the other hand, ...