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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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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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High Performance Germanium-based Anode Materials for Lithium-ion and Sodium-ion Rechargeable Batteries
DownloadFall 2014
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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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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Spring 2020
There is an increasing need of clean renewable energy sources to address the growing problems of greenhouse gas emission, global warming and climate change. The rapid consumption of fossil fuel resources has also contributed to toxic emissions and raised a question on sustainability of present...
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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...
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Intrinsic Disorder Effects and Persistent Current Studies of YBCO Thin Films and Superconducting Tunnel Junctions
DownloadFall 2009
This thesis studies the intrinsic disorder effects and the transport and magnetic properties of ring-shaped epitaxial thin films and superconducting tunnel junctions (STJs) of the high temperature superconductor YBa$2$Cu$3$O${7-\delta}$. We used an unconventional contactless technique that allows...
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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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Fall 2017
The use of organic, semiconducting polymers provides an attractive option to advance commercial solar photovoltaic technologies. These devices have the potential to be spray-coated on flexible, light-weight substrates and produced cheaply in high volumes; however, performance remains limited in...