Browsing by Subject "MoS2"
Now showing items 1-13 of 13
-
Characterisation and Manipulation of Transition Metal Dichalcogenides via Atomic Force Microscopy
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Scanning probe microscopy (SPM) has revolutionised nanotechnology and allowed the study and manipulation of materials at the nanoscale, making it ideal for the study of solid-state physics and semiconductor technologies. ... -
Dependence of Photocurrent Enhancements in Hybrid Quantum Dot-MoS2 Devices on Quantum Dot Emission Wavelength
(2019)The spectral dependence of nonradiative energy transfer (NRET) from three spectrally different quantum dot (QD) ensembles to monolayer MoS2 is reported. The QDs with peak emission wavelengths of 450, 530, and 630 nm induce ... -
Helium Ion Beam Irradiation of MoS2: Fabrication of 2D Memristors
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2020)A memristor is an electronic device which exhibits a non-volatile and reversible resistance change in response to an applied electric field. These properties make the memristor a potential prime component in the field of ... -
High-Figure-of-Merit Biosensing and Enhanced Excitonic Absorption in an MoS2-Integrated Dielectric Metasurface
(2023)Among the transitional metal dichalcogenides (TMDCs), molybdenum disulfide (MoS2) is considered an outstanding candidate for biosensing applications due to its high absorptivity and amenability to ionic current measurements. ... -
Influence of Gold Nano-Bipyramid Dimensions on Strong Coupling with Excitons of Monolayer MoS2
(2020)Rabi splitting between the longitudinal plasmon of a gold nano-bipyramid and the A exciton of monolayer MoS2 is observed at room temperature. The dependence of the Rabi splitting on the physical dimensions of the nano-bipyramid ... -
Interactions of Plasmonic and Dielectric Structures with 2D Materials
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)Three separate systems of nanoparticles coupled to two-dimensional materials are studied. Each system is investigated both experimentally and numerically with FDTD simulations. The first system involves a nanoparticle-on-mirror ... -
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 ... -
Optimized single-layer MoS2 field-effect transistors by non-covalent functionalisation
(2018)Field-effect transistors (FETs) with non-covalently functionalised molybdenum disulfide (MoS2) channels grown by chemical vapourdeposition (CVD) on SiO2are reported. The dangling-bond-freesurface of MoS2was functionalised ... -
Origin of the n-type and p-type conductivity of MoS2 monolayers on a SiO2 substrate
(2013)Ab initio density functional theory calculations are performed to study the electronic properties of a MoS 2 monolayer deposited over a SiO 2 substrate in the presence of interface impurities and defects. When ... -
Precise modification of 2D materials by gas ion beams
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018) -
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 ... -
Spin injection and magnetoresistance in MoS2-based tunnel junctions using Fe3Si Heusler alloy electrodes
(2018)Recently magnetic tunnel junctions using two-dimensional MoS2 as nonmagnetic spacer have been fabricated, although their magnetoresistance has been reported to be quite low. This may be attributed to the use of permalloy ... -
Towards Improved Characterisation and Synthesis of Two-Dimensional Transition Metal Dichalcogenides
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)Two-dimensional (2D) transition metal dichalcogenides (TMDs) are a fast growing and highly researched area in modern materials science. The numerous potential advances, made possible by their oft-quoted, varied, and ...