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Metal-Insulator Transition and IR Detection of Thin Films Fabricated by Pulsed Laser Deposition
DownloadFall 2018
Current thin film technologies and devices require high quality deposits in order to fully extract the potential of the material. Pulsed laser deposition (PLD) is one physical vapour deposition method used to synthesize these high quality complex films. PLD offers the distinct advantage of being...
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Spring 2018
Developing miniature instrumentation for biosensing has attracted an extensive interest due to the demand for selective and sensitive detection of multiple targets at extremely low concentrations with exceedingly small sample volumes. Micro/nano mechanical sensors, such as microcantilevers (MCL),...
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Fall 2013
This thesis outlines the development of two platforms for integrating microfabricated sensors with high pressure feedthroughs for application in hostile high temperature high pressure environments. An application in oil well production logging is explored and two sensors were implemented with...
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Spring 2014
Crude oils contain a distribution of molecules with diverse chemical structures and molecular weights. Asphaltenes are considered the most problematic of these structures. We have investigated the adsorption and aggregation of asphaltenes on surfaces using scanning probe microscopy. Modifying the...
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Microstructure-property correlation in magnesium-based hydrogen storage systems- The case for ball-milled magnesium hydride powder and Mg-based multilayered composites
DownloadSpring 2011
The main focus of this thesis is the characterization of defects and microstructure in high-energy ball milled magnesium hydride powder and magnesium-based multilayered composites. Enhancement in kinetics of hydrogen cycling in magnesium can be achieved by applying severe plastic deformation. A...
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Nanoscale resonators fabricated from metallic alloys, and modeling and simulation of polycrystalline thin film growth
DownloadSpring 2010
Part I - We have designed a binary metallic alloy for nanoscale resonator applications. We used magnetron sputtering to deposit films with different stoichiometries of aluminum and molybdenum and then characterized the microstructure and physical properties of each film. A structure zone map is...
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Novel Plasma Based Technology for Treatment of Emerging Contaminants in Water: Understanding Physiochemical Processes and Applications
DownloadSpring 2017
Indiscriminate and widespread disposal of pharmaceutical compounds, dye molecules, and pesticides in to water resources pose a serious threat to the quality of drinking water. A critical need exists for developing novel practical, efficient, and cost effective water treatments for remediation of...
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Optically mediated thermal response of Quartz Tuning Forks modified with a silicon bridge for bolometric and atmospheric sensing through Photothermal Spectroscopy
DownloadSpring 2019
Due to the inherent benefits offered by the Quartz Tuning Fork (QTF) platform, QTFs have found utility in a variety of scientific applications to include, but not limited to spectroscopy, microscopy, and atmospheric sensing. It is from the intersection of these applications that the proceeding...
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Fall 2017
Resonance is at the heart of sensing and characterization tools in all fields of science. A nanoresonator has achieved the remarkable resolution of a proton mass. The coupling of a micromechanical oscillator to an optical field in a high finesse cavity has allowed sensitive probing even in the...