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Fall 2014
In this thesis, a new technique named vapour-liquid-solid glancing angle deposition (VLS-GLAD) will be used to enhance structural control over branched nanowire (NW) arrays. NWs are 1D crystals that have been extensively applied in sensors, photovoltaic devices, and transistors. The functional...
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Fall 2014
Nanoscale materials offer opportunities to employ unique physical phenomena and performance enhancement in many applications, including energy conversion. The coupling of functional materials properties and nanoscale morphologies is paramount for the successful implementation of nanostructured...
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Spring 2013
Research was undertaken into the organic semiconductors tris(8- hydroxyquinoline)aluminum (Alq3) as well as bis(8-hydroxyquinoline)zinc (Znq2) to the effect of improving achievable morphological control using an inexpensive evaporation based solution synthesis method. By varying experimental...
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Synthesis and Characterization of TiO2 Nanowire and Nanotube Arrays for Increased Optoelectronic Functionality
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The n-type semiconducting, vertically oriented TiO2 nanotube and nanowire arrays constitute a mechanically robust, high surface area, easily functionalized architecture with vectorial electron percolation pathways and have been the focus of interest for variety of applications including but not...
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Spring 2015
This thesis is focused on the silicon-based anode materials for lithium-ion batteries (LIBs) as well as germanium-based electrode materials for sodium-ion batteries (NIBs). In our first attempt we studied electrochemical cycling stability and degradation mechanisms of silicon nanowires (SiNWs)...
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Fall 2014
Metamaterials are artificially engineered materials with tailored properties for applications in imaging, sensing, waveguiding and quantum optics. Even though they hold the potential for transformative impact, industrial applications have been impeded by large absorption losses in material...
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Highly Ordered Methanofullerene Nanotube Array: Fabrication and Implications for Room Temperature Organic Spintronics
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Organic semiconductors have come to the forefront of research in physics, chemistry and electronics due to their impressive properties and low cost of device production. Presented here is a novel centrifuge assisted organic nanowire growth technique and its application in the fabrication of...
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High Performance Germanium-based Anode Materials for Lithium-ion and Sodium-ion Rechargeable Batteries
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In this thesis the electrochemical performance of germanium nanowires (GeNWs) as anode for lithium-ion batteries (LIBs) and tin-germanium-antimony (Sn-Ge-Sb) thin films as anode for sodium-ion batteries (NIBs) have been investigated. Scientific literature shows a substantial study-to-study...
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Fall 2015
An investigation was conducted on heavy oil cracking using polarized hot stage microscopy and laser dynamic backscattering. Both of these in-situ techniques were used to monitor cracking reactions through the use of backscattering. The use of hot stage microscopy resulted in a series of...