Browsing Theses by Subject "graphene"
Now showing items 1-20 of 30
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2D Material Based PTE Detectors with Room Temperature Operations
(University of Waterloo, 2023-12-21)Real-time, room-temperature operation and self-powered photothermoelectric (PTE) detection emeries are advanced and versatile solutions for various applications. These detectors offer the advantage of not requiring external ... -
Analysis of Plasmons Sustained on the Surface of Graphene
(University of Waterloo, 2014-08-11)This thesis is broken into two parts, both dealing with the role of two-dimensional graphene in electronic and optical applications. The first section develops a phenomenological relationship for the polarizability of the ... -
Applications of Graphene in Vanadium Redox Flow Batteries
(University of Waterloo, 2023-12-22)Vanadium redox flow batteries (VRFBs) exhibit great promise as easily scalable, long-lasting, modular systems for grid-scale energy storage. However, vanadium crossover and poor reaction kinetics increase their operating ... -
Characterization and Size Optimization of Additively Manufactured Flexible Piezoresistive Sensors for Vibration Strain Sensing
(University of Waterloo, 2021-12-21)Flexible piezoresistive strain sensors have promising applications in areas such as wearables and soft robotics. For sensing dynamic strains, such as a runner’s gait or a slipping object held by a robotic gripper, these ... -
Decreasing Graphene Contact Resistance by Increasing Edge Contact Length
(University of Waterloo, 2016-05-12)Graphene is a two dimensional material which has combination of unique mechanical, electrical and optical properties. Due to the unique properties of graphene, it has potential for several applications such as radio frequency ... -
Development of Electro-active Graphene Nanoplatelets and Composites for Application as Electrodes within Supercapacitors
(University of Waterloo, 2012-02-29)The mounting concern for renewable energies from ecologically conscious alternatives is growing in parallel with the demand for portable energy storage devices, fuelling research in the fields of electrochemical energy ... -
Development of Electrospun PAN Fibers Used as Electrodes for Flow Cell Applications
(University of Waterloo, 2019-09-23)The increase in energy consumption coupled with global climate change have generated a keen interest in renewable energy resources in the scientific world. Grid scale energy storage solutions are required in order to bridge ... -
Development of Flexible Lithium Sulfur Batteries Based on Laser-Induced Graphene
(University of Waterloo, 2018-08-13)Emerging technologies have become increasingly advanced with flexible components and are integrated into various interfaces, finding themselves in applications such as rollable displays, wearable technologies and e-textiles. ... -
Development of Flexible, Carbon-Based Electrochemical Energy Storage Electrodes
(University of Waterloo, 2019-08-07)Research into energy storage and conversion technologies has skyrocketed within the past few decades, motivated by the increased energy demands of our society and the threat of depleting energy sources. One of the exciting ... -
Effects of the Dielectric Environment on the Electrical Properties of Graphene
(University of Waterloo, 2013-08-30)This thesis provides the study of graphene’s electrostatic interaction with the substrate surrounding it. Mathematical models based on current experimental configurations of graphene field-effect transistors (FET) are ... -
Electronic Transport Properties in Single-layer CVD graphene
(University of Waterloo, 2023-01-23)Graphene is a two-dimensional material of carbon atoms possessing a metallic nature and the low-energy quasiparticles behave as massless Dirac fermions. The unique electronic properties of graphene inspire many researches ... -
Fabrication and characterization of nano carbon-based electrochemical double-layer capacitors
(University of Waterloo, 2015-08-26)Porous electrode is a key component in electrochemical double layer capacitors (EDLCs), also called supercapacitors, which provides effective charge storage sites and ion transport channels along the electric double-layer ... -
Fabrication of Graphene-based Electrodes for Electrochemical Energy Storage Devices
(University of Waterloo, 2023-08-29)Amid a global climate crisis, the urgent transition to net zero carbon emissions necessitates the development of improved electrochemical energy storage (EES) devices, such as batteries and supercapacitors. One of the most ... -
From Fundamentals to Spectroscopic Applications of Density Functional Theory
(University of Waterloo, 2020-05-29)Density functional theory (DFT) and its time-dependent counterpart (TDDFT) are crucial tools in material discovery, drug design, biochemistry, catalysis, and nanoscience. However, despite its exact theoretical basis, ... -
Graphene-Wrapped Hierarchical TiO2 Nanoflower Composites with Enhanced Photocatalytic Performance
(University of Waterloo, 2014-04-23)Increasing energy demands as well as the depletion of traditional energy sources has led to the need for the development and improvement of energy conversion and storage technologies. Concerns regarding climate change and ... -
Hydrodynamic Modeling of Dielectric Response in Graphene and Carbon Nanotubes
(University of Waterloo, 2006)This thesis studies two important carbon structures, graphene and carbon nanotubes, with the purpose of understanding how their three-dimensional electron density distribution affects the way fast ions interact with them. ... -
The Impact of Graphene Sheet Size on the Performance of Interconnected Graphene Foam-Based Supercapacitors
(University of Waterloo, 2015-08-24)The increasing demand for energy and growing concerns of propagating greenhouse emissions has directed many investments towards the furtherance of benign energy storage commercialization. Unfortunately, batteries continue ... -
A Journey into Jamming: Phase Transitions and Edge-to-Edge Heterostructures in Langmuir Blodgett Films of Exfoliated Two-Dimensional Materials
(University of Waterloo, 2024-03-21)Two-dimensional (2D) materials hold significant promise as new electronic materials, and could enable high mobility devices, and flexible electronics. In particular, graphene and few-layer molybdenum disulfide have been ... -
Linear optical characterization of graphene structure
(University of Waterloo, 2018-01-04)Graphene as a newly developed 2D material has attracted a lot of attention for its promising applications in optoelectronic fields. To pursue a profound understanding of its optical properties, this thesis presents the ... -
Microwave plasma synthesis of graphene and its laser-optical in situ characterization
(University of Waterloo, 2022-09-27)Graphene and its derivatives possess exceptional electrical, mechanical, and thermal properties, which enable the use of these materials in numerous existing and emerging applications. Accordingly, large-scale graphene ...