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 13 of 13 for “"Si nanowire"”.
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Multi-functional Hybrid Gating Silicon Nanowire Field-effect Transistors
… or tablets, have led to the emergence of silicon nanowire transistors a decade ago. Along with the Si-based nanotechnology, the silicon compatible optical and chemical sensing applications have boosted the research on hybrid devices that combine the organic and inorganic materials. Apart …
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Modeling analysis of core-shell Si/SiGe nanowires
(cont.) a composition that results in a high mobility has a very promising thermoelectric performance. Lastly, the thermoelectric-related transport properties for a Si/SiGe core-shell nanowire are compared with the related properties for a Si nanowire and a SiGe nanowire. The Si/SiGe core-shell …
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Gate-all-around silicon nanowire MOSFETs : top-down fabrication and transport enhancement techniques
… 15 nm gate lengths is extremely challenging using a planar device architecture due to the stringent criteria required for the transistor switching. The top-down fabricated, gate-all-around architecture with a Si nanowire channel is a promising candidate for future technology generations. The …
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Structure/processing relationships in vapor-liquid-solid nanowire epitaxy
The synthesis of Si and III-V nanowires using the vapor-liquid-solid (VLS) growth mechanism and low-cost Si substrates was investigated. The VLS mechanism allows fabrication of heterostructures which are not readily attainable using traditional thin-film metalorganic chemical vapor deposition …
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Design and fabrication of nanostructures for thermal conductivity measurements and picosecond acoustics
This thesis describes three fabrication processes for measurement in three different phonon applications. First, fabrication of sub-10nm fluorocarbon films is presented for thin film thermal conductivity measurement. Thermal conductivity of this ultra-thin polymer film is especially interested in …
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Thermal transport in graphene-based nanostructures and other two-dimensional materials
… little is known about heat flow in two-dimensional (2D) materials or devices with dimensions comparable to the phonon mean free path (MFP). Here, we investigated thermal transport in graphene-based nanostructures and several other 2D materials. First, we measured heat conduction in nanoscale …
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First principles simulation of amorphous silicon bulk, interfaces, and nanowires for photovoltaics
Amorphous silicon has become the material of choice for many technologies, with major applications in large area electronics: displays, image sensing and thin film photovoltaic cells. This technology development has occurred because amorphous silicon is a thin film semiconductor that can be …
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Silicon Nanowires the Route from Synthesis towards Applications
This work provides an overview on the silicon nanowires synthesis scenario by introducing the most employed bottom-up and top-down strategies, exploiting their main advantages and drawbacks. The impressive structural, optical and electrical properties of these nanostructures promote their …
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Fabrication of capacitors based on silicon nanowire arrays generated by metal-assisted wet chemical etching
Capacitors with high capacitance density (capacitance per footprint area) have potential applications in autonomous microsystems that harvest energy from the environment, as they can store and release energy at high rates. Use of high surface-to-volume ratio structures has been demonstrated as an …
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Addressing performance bottlenecks for top-down engineered nanowire transistors
… to meet the demands of higher device density, faster clock rate and lower power consumption. However, as the scaling dimensions shrink down to the sub-100 nm regime, immense physical challenges make the use of conventional scaling techniques alone insufficient. Novel one-dimensional (1D) …