Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Carbon nanotubes and graphene"”.
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Physical and chemical manipulation of carbon nanotubes and graphene for nanoelectronics
The electron confinement in carbon nanomaterials provides them with many interesting electronic, mechanical and optical properties, thus making them one of the best suited materials for electronic and sensor applications. However, at present practical realization of nano-scale electronics faces two …
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Fabrication and electrical characterization of transistors made from carbon nanotubes and graphene
Carbon nanotubes and graphene are low-dimensional allotropes of carbon which exhibit novel mechanical and electrical properties. The methods for producing these materials and fabricating electronic devices from them are still under development. This thesis uses the fabrication and electronic …
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Nanoelectronic Devices using Carbon Nanotubes and Graphene Electrodes: Fabrication and Electronic Transport Investigations
… which can be applicable in large-area, flexible and transparent displays, sensors and solar cells. One of the major bottlenecks in the fabrication of high-performance devices is a large interfacial barrier formation at metal/semiconductor interface originated from Schottky barrier and interfacial …
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Carbon nanotubes and graphene in aqueous surfactant solutions : molecular simulations and theoretical modeling
… thesis describes combined molecular simulations and theoretical modeling studies, supported by experimental observations, on properties and applications of carbon nanotubes (CNTs) and graphene sheets dispersed in aqueous surfactant solutions. In particular, the role of the bile salt anionic …
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Understanding and engineering interfacial charge transfer of carbon nanotubes and graphene for energy and sensing applications
Graphene is a one-atom thick planar monolayer of sp2 -bonded carbon atoms organized in a hexagonal crystal lattice. A single walled carbon nanotube (SWCNT) can be thought of as a graphene sheet rolled up into a seamless hollow cylinder with extremely high length-to-diameter ratio. Their large …
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CARBON-BASED NANOMATERIALS AND THEIR ENSEMBLES FOR HIGH TEMPERATURE THERMAL APPLICATIONS
Carbon nanomaterials, mainly including carbon nanotubes and graphene, have high potential for heat transfer applications at high temperatures because of their superb heat transport properties and good thermal stability. However, due to the small physical sizes of carbon nanomaterials, real-world …
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Nanosoldering carbon nanotube fibers and graphene nanoribbon thin film transistors
… applications of the nanoscale allotropes of carbon. We work with carbon nanotubes and graphene nanoribbons. The first part involves using carbon nanotubes (CNTs) to build composite structures such as fibers. In the past, our group developed the “nanosoldering” technique to solder carbon …
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Under confinement : molecular dynamics investigations of ions and molecules in nanopores and at nanoscale interfaces.
The behavior of molecules in nanopores and at nanoscale interfaces are of fundamental importance in chemical applications such as electrical energy storage and water desalination. Investigations into carbon based structures such as carbon nanotubes and graphene sheets with confined fluids are …
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Graphitic Surface Attachment by Single-Stranded DNA and Metal Nanoparticles
Graphene and carbon nanotubes are extreme mechanical and electronic materials which have been the subjects of intense study and development since their discoveries. While many of their intrinsic properties have been discovered, their interactions with other materials are only beginning to be …
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Energy relaxation and thermal rectification in carbon devices
… problem\textquotedblright{} i.e. power densities and device temperatures reaching levels that will prevent their reliable operation. A majority of the power is dissipated during individual transistor switching, but a great deal of power is also dissipated through thermionic leakage. Therefore, a …
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Graphene Decorated Substrates and Their Interfacial Characteristics
<p>Carbon nanotubes and graphene have been extensively studied for their excellent properties. As research on carbon expands, two major issues face the scientific community: (i) Expanding the scale of synthesis and (ii) Integration of different carbon structures for improved functionality. While …
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A study of carbon based materials for energy applications
Carbon based materials such as CNTs and graphene have been widely studied over the last few years. The outstanding electrical and mechanical properties of these materials attracted researchers to find ways to grow and use them in nano-devices. Among the different techniques, PECVD is a relatively …
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Atomic and electronic structure studies of nano-structured systems : Carbon and related materials
… density functional theory has been conducted on carbon nanotubes and graphene nano-structures. The results have been extended to non-carbon systems such as boron nanostructures. Computational studies are complemented by experimental methods to refine the structural models and obtain a better …
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Theoretical Modeling Of Electron Transport In Molecular Devices
… sophisticated stage. Requirements for smaller and reliable devices are becoming more and more demanding. It is predicted that Moore's law in making a faster CPU is going to break down in the foreseeable future. People start to look into new materials in the hope that soon in the future, one can …