School of Chemistry: Recent submissions
Now showing items 241-260 of 1366
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Four-dimensional photonic micro-actuators for microfluidics applications
(2020)Herein we review aspects of leading-edge research and innovation in Materials Sciencethatexploits big data and Machine Learning(ML), two computer science conceptsthat combine to yield computationalintelligence. ML can ... -
Studies of a series of Benzene-1,3,5-derivatives and some other supramolecular building blocks and their self-assembly properties
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)This thesis, titled Studies of a series of Benzene-1,3,5-derivatives and some other supramolecular building blocks and their self-assembly properties , describes the synthesis and characterisation of novel tripodal systems ... -
Oxygen evolution catalysts under proton exchange membrane conditions in a conventional three electrode cellvs.electrolyser device: a comparison study and a 3D-printed electrolyser for academic labs
(2021)Developing active and stable Oxygen Evolution Reaction (OER) catalysts that can operate in electrolyser environments is of utmost important in order to produce H2 gas for electricity generation. Currently, many of these ... -
Novel Approaches to Probe the Activity of Deubiquitinating Enzymes
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)Ubiquitination is a highly conserved post-translational modification that regulates a multitude of critical cellular events. This process is orchestrated by a complex enzymatic network. Deubiquitinating enzymes (DUBs) ... -
Investigation of growth-induced strain in monolayer MoS2 grown by chemical vapor deposition
(2020)Two-dimensional materials such as transitional metal dichalcogenides exhibit unique optical and electrical properties. Here we report on the varying optical properties of CVD grown MoS2 monolayer flakes with different ... -
Defect Engineering of Two-Dimensional Molybdenum Disulfide
(2020)Two-dimensional (2D) molybdenum disulfide (MoS2) holds great promise in electronic and optoelectronic applications owing to its unique structure and intriguing properties. The intrinsic defects such as sulfur vacancies ... -
Low-humidity sensing properties of multi-layered graphene grown by chemical vapor deposition
(2020)Humidity sensing is fundamental in some applications, as humidity can be a strong interferent in the detection of analytes under environmental conditions. Ideally, materials sensitive or insensitive towards humidity are ... -
Nanoelectromechanical sensors based on suspended 2D materials
(2020)The unique properties and atomic thickness of two-dimensional (2D) materials enable smaller and better nanoelectromechanical sensors with novel functionalities. During the last decade, many studies have successfully shown ... -
Rapid and Large-Area Visualization of Grain Boundaries in MoS 2 on SiO 2 Using Vapor Hydrofluoric Acid
(2020)Grain boundaries in two-dimensional (2D) material layers have an impact on their electrical, optoelectronic, and mechanical properties. Therefore, the availability of simple large-area characterization approaches that can ... -
Calibration of Nonstationary Gas Sensors Based on Two-Dimensional Materials
(2020)Two-dimensional materials (2DMs) have high potential in gas sensing, due to their large surface-to-volume ratio. However, most sensors based on 2DMs suffer from the lack of a steady state during gas exposure, hampering ... -
Sub-millimeter size high mobility single crystal MoSe2 monolayers synthesized by NaCl-assisted chemical vapor deposition
(2020)Monolayer MoSe2 is a transition metal dichalcogenide with a narrow bandgap, high optical absorbance andlarge spin-splitting energy, giving it great promise for applications in thefield of optoelectronics. Producingmonolayer ... -
Quantum confinement-induced semimetal-to-semiconductor evolution in large-area ultra-thin PtSe2 films grown at 400 °C
(2019)In this work, we present a comprehensive theoretical and experimental study of quantum confinement in layered platinum diselenide (PtSe2) films as a function offilm thickness. Our electrical measurements, in combination ... -
Defect-moderated oxidative etching of MoS<inf>2</inf>
(2019)We report a simple technique for the selective etching of bilayer and monolayer MoS 2. In this work, chosen regions of MoS 2 were activated for oxygen adsorption and reaction by the application of low doses of He + at 30 ... -
PtSe2 grown directly on polymer foil for use as a robust piezoresistive sensor
(2019)Robust strain gauges are fabricated by growing PtSe2layers directly on top of flexible polyimide foils. These PtSe2layers are grown by low-temperature, thermally-assisted conversion of predeposited Pt layers. Under applied ... -
Few-Layer MoS2/a-Si:H Heterojunction Pin-Photodiodes for Extended Infrared Detection
(2019)Few-layer molybdenum disulfide (FL-MoS2) films have been integrated into amorphous silicon (a-Si:H) pin-photodetectors. To achieve this, vertical a-Si:H photodiodes were grown by plasma-enhanced chemical vapor deposition ... -
Electrical devices from top-down structured platinum diselenide films
(2018)Platinum diselenide (PtSe2) is an exciting new member of the two-dimensional (2D) transition metal dichalcogenide (TMD) family. It has a semimetal to semiconductor transition when approaching monolayer thickness and has ... -
Perforating Freestanding Molybdenum Disulfide Monolayers with Highly Charged Ions
(2019)Porous single-layer molybdenum disulfide (MoS2) is a promising material for applications such as DNA sequencing and water desalination. In this work, we introduce irradiation with highly charged ions (HCIs) as a new technique ... -
Template-free and surfactant free solvothermal synthesis of mesoporous manganese oxide with enhanced activity in the oxygen evolution reaction
(2017)Porous manganese carbonate was obtained via solvothermal synthesis using ethanol and urea. The manganese carbonate was subsequently used as a precursor to synthesise mesoporous manganese oxides via thermal treatments at ... -
Understanding the kinetics of catalysed reactions in microheterogeneous thin film electrodes
(2020)In this paper which is dedicated to Professor Richard Compton for his 65th birthday, we examine the problem of describing the transport and kinetics of catalytic reactions in which the catalyst is immobilized within a ... -
Site-Selective Oxidation of Monolayered Liquid-Exfoliated WS2 by Shielding the Basal Plane through Adsorption of a Facial Amphiphile
(2020)In recent years, various functionalization strategies for transition‐metal dichalcogenides have been explored to tailor the properties of materials and to provide anchor points for the fabrication of hybrid structures. ...