Browsing Engineering (Faculty of) by Title
Now showing items 4564-4583 of 7223
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Nanocellulose-based systems for the removal of perfluoroalkyl compounds from water
(University of Waterloo, 2021-08-30)The contamination of drinking water sources with poly- and perfluoroalkyl substances (PFAS) is a cause for concern. These compounds have been linked to several health problems in humans, and thus there is an urgent need ... -
Nanocomposite Based Infrared Photothermoelectric Detectors
(University of Waterloo, 2023-04-24)In the last decade, photothermoelectric (PTE) detectors that combine photothermal and thermoelectric conversion have been demonstrated for infrared and terahertz tracking. They are advantageous in terms of facile fabrication, ... -
Nanocrystalline Silicon Solar Cells Deposited via Pulsed PECVD at 150°C Substrate Temperature
(University of Waterloo, 2010-08-31)A series of experiments was carried out to compare the structural and electronic properties of intrinsic nanocrystalline silicon (nc-Si:H) thin films deposited via continuous wave (cw) and pulsed (p)-PECVD at 150°C substrate ... -
Nanocrystalline Silicon Thin Film Transistor
(University of Waterloo, 2008-05-23)Hydrogenated amorphous silicon (a-Si:H) thin film transistor (TFT) has been used in active matrix liquid crystal displays (LCDs) and medical x-ray imagers, in which the TFT acts as pixel switches. However, instability of ... -
Nanofabrication and its Application in Atomic Force Microscopy (AFM)
(University of Waterloo, 2015-09-16)This thesis is focused on nanofabrication and its application in atomic force microscopy (AFM). The contribution of this thesis is thus the development, investigation and characterization of novel nanofabrication technique ... -
Nanofabrication and its application in developing high aspect ratio (HAR) and edge Atomic Force Microscopy (AFM) probes
(University of Waterloo, 2018-08-20)This thesis focuses on nanofabrication and its applications which are related to producing atomic force microscope (AFM) probes. This thesis is divided into four chapters. The first chapter brings a preliminary introduction ... -
Nanofabrication and its application in plasmonic chemical and bio-sensors
(University of Waterloo, 2014-03-04)This thesis is focused on nanofabrication and its application in plasmonic chemical and bio- sensors. The contribution thus is the development of novel nanofabrication techniques and nano- structures for the sensors based ... -
Nanofabrication of direct positioning atomic force microscope (AFM) probes and a novel method to attain controllable lift-off
(University of Waterloo, 2017-01-23)This thesis focuses on nanofabrication and its applications in the area related to atomic force microscope (AFM) probes and a novel way of constructing the bi-layer system for liftoff. The contribution of this thesis is ... -
Nanofabrication Using Electron Beam Lithography: Novel Resist and Applications
(University of Waterloo, 2013-09-04)This thesis addresses nanostructure fabrication techniques based on electron beam lithography, which is the most widely employed nanofabrication techniques for R&D and for the prototyping or production of photo-mask or ... -
Nanolithography on non-planar surfaces and self-assembly of metal salt-polymer nanomaterials
(University of Waterloo, 2016-08-29)This thesis is focused on fabrication of high aspect ratio nanostructures on non-planar surfaces using evaporated electron beam resist (Part I), and a novel fabrication methods of high resolutionhigh-resolution surface ... -
Nanomaterials in Water Remediation: Functionalization and Applications for Pharmaceutical Removal in Municipal Wastewater Effluent
(University of Waterloo, 2019-09-10)With an increasing population, there is a higher pressure on natural resources including water. Increased water consumption, altered hydrology and pollution, threaten the sustainability of aquatic ecosystems and water ... -
Nanometer Probing of Operating Nano-Photonic Devices
(University of Waterloo, 2014-08-25)The external performance of quantum optoelectronic devices is governed by the three-dimensional profiles of electric potentials determined by the distribution of charge carriers (electrons and holes) within the active ... -
Nanoparticle Focussing Using Aerodynamic Lenses and a Divergent Nozzle
(University of Waterloo, 2021-11-23)Since the COVID-19 pandemic has been a global crisis that has posed enormous and diverse challenges to humanity, it has revealed the urgent need for further study into a variety of properties of viruses, including virus ... -
Nanoparticle Notch Filters for Selective Filtering of Blue Light in Contact Lenses
(University of Waterloo, 2018-08-20)The visible wavelengths are essential to a normal colour vision, however overexposure of high-energy visible (HEV) light may be damaging to both ocular and non-ocular health. Some health concerns associated with HEV light ... -
Nanoparticles as X-ray CT Imaging Contrast Agents in Saturated Porous Media
(University of Waterloo, 2020-08-28)Parallels exist between medical imaging techniques, such as X-ray computed tomography (CT) or magnetic resonance imaging, and geophysical methods used to analyze the subsurface, such as ground penetrating radar, electromagnetic ... -
Nanoscale Manipulation of Electrokinetic Transport for Iontronic Applications based on Surface Modification
(University of Waterloo, 2021-08-10)Electrokinetic transport demonstrates a lot of new physical behaviors in nanofluidic systems due to the high surface-to-volume ratios and interactions between the fluid and walls of nanofluidic systems. The unique properties ... -
Nanoscale X-ray Computed Tomography Based Modeling of Lithium-ion Battery Electrodes
(University of Waterloo, 2018-01-09)Because of their high energy/power density, long cycle life, and extremely low rate of self-discharge, lithium-ion batteries (LIBs) have dominated portable electronics, smart grid, and electric vehicles (EVs). Although ... -
Nanostructure Enabled Memristor and Supercapacitor
(University of Waterloo, 2023-01-09)The composition of conventional circuits is based on four basic elements: resistors, capacitors, inductors, and memristors. Among them, resistors and inductors have been widely studied. Memristor has a desirable application ... -
Nanostructured catalyst design to improve ultrafine Pt nanoparticle utilization and stability for PEMFCs
(University of Waterloo, 2020-05-15)Polymer electrolyte membrane fuel cells (PEMFCs) is an electrochemical device which efficiently converts chemical energy stored in hydrogen and oxygen into electricity and water. Widely regarded as promising alternative ... -
Nanostructured complex hydride systems for solid state hydrogen storage
(University of Waterloo, 2012-01-19)The present work reports a study of the effects of the formation of a nanostructure induced by high-energy ball milling, compositions, and various catalytic additives on the hydrogen storage properties of LiNH2-LiH and ...