Browsing Institutt for fysikk by Title
Now showing items 782-801 of 2655
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Electron Microscopy Based Characterization of Semiconductor Nanowires
(Doctoral thesis at NTNU;2016:181, Doctoral thesis, 2016)One-dimensional semiconductor structures have attracted a large research interest, mainly for the purpose of novel or improved opto-electronic properties and applications. In this work, semiconductor nanowires grown using ... -
Electron Microscopy Characterization of Aluminium-Copper-Titanium-Steel Joint made using the Hybrid Metal Extrusion & Bonding Method
(Master thesis, 2020)Multimaterielle skjøter er nyttige i produksjon av lette strukturer med høy ytelse og funksjonalitet. Denne avhandlingen undersøker en skjøt sammensveiset ved bruk av den innovative Hybrid Metal Extrusion & Bonding (HYB) ... -
Electron Microscopy Characterization of III-Nitride Nanowires grown on Graphene
(Master thesis, 2018)GaN nanowires grown on graphene glass using molecular beam epitaxy have been studied using scanning electron microscopy and different transmission electron microscopy techniques. The nanowires have an AlN nucleation particle ... -
Electron Microscopy characterization of the Interface between a (111)-Si Substrate and GaAs Nanowires grown by Self-Catalysis by MBE
(Master thesis, 2011)The interface between zincblende (ZB) GaAs nanowires (NWs) grown by selfcatalysisin MBE, and a 111-Si substrate was studied. This was done with thepurpose of determining if any defects, stacking fault, twins, different ... -
Electron microscopy of intermetallic phases in aluminium-steel joints
(Doctoral theses at NTNU;2021:168, Doctoral thesis, 2021)Joints that combine the light weight of aluminium (Al) alloys with the high strength of steels, can be beneficial in structural components. For instance, in automobiles, Al-steel joints can enable improvement of the ... -
Electron precipitation characteristics during isolated, compound, and multi-night substorm events
(Peer reviewed; Journal article, 2021)A set of 24 isolated, 46 compound, and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion–recovery phase pairs, compound ... -
Electron-magnon coupling and magnon-induced superconductivity in hybrid structures of metals and magnets with non-collinear ground states
(Master thesis, 2022)Elektron-magnon interaksjoner i et dobbeltlag av monoatomisk metall og en ferromagnetisk isolator med ikke-kolineær spiralfase er studert på et triangulært gitter, motivert av nylig interesse i liknende systemer med enklere ... -
Electron-magnon coupling and quasiparticle lifetimes on the surface of a topological insulator
(Peer reviewed; Journal article, 2021)The fermionic self-energy on the surface of a topological insulator proximity coupled to ferro- and antiferromagnetic insulators is studied. An enhanced electron-magnon coupling is achieved by allowing the electrons on the ... -
Electron-magnon coupling with anisotropic ferromagnets
(Master thesis, 2022)Heterostrukturer, der to eller flere materialer er koblet sammen, har mottatt interesse på grunn av superledningsevnene deres. Spesielt har det blitt vist at antiferromagnetiske isolatorer (AFMIer) koblet til normale metall ... -
Electron-phonon coupling in graphene
(Master thesis, 2018)The aim of this Master thesis was to perform a theoretical study of the electron-phonon coupling in graphene. The main results of the thesis are the electron-phonon coupling constant as a function of ... -
Electronic and adsorption properties of extended chevron and cove-edged graphene nanoribbons
(Peer reviewed; Journal article, 2021)The electronic and adsorption properties of chevron and cove-edged graphene nanoribbons (GNRs) are studied using first principles calculations. The positive binding and adsorption energies in conjunction with the positive ... -
Electronic and optical properties of doped Cu2O and ZnS thin films
(Doctoral theses at NTNU;2017:107, Doctoral thesis, 2017)In this thesis, two earth-abundant, easily fabricated semiconductors, Cu2O and ZnS, were investigated to explore their electronic and optical properties after doping. Fe doped ZnS has been studied as a potential material ... -
Electronic and Optical Properties of TiO2, and the Potential of Doped TiO2 for the Use in Intermediate Band Solar Cells
(Master thesis, 2023)Titandioksid (TiO2), med sine særegne egenskaper og kostnadseffektive, ikke-giftige, og stabile natur, er mye brukt i ulike sektorer, inkludert avanserte energiteknologier som fotovoltaiske enheter. Et eksempel på sistnevnte ... -
Electronic and optical surface properties of noble metals studied by reflection anisotropy spectroscopy
(Dr. ingeniøravhandling, 0809-103X; 2000:38, Doctoral thesis, 2000)The thesis demonstrates some of the possibilities of using light to measure and understand microscopic properties of noble metal and nickel surfaces. The work consist mainly of three parts: 1. The design and construction ... -
Electronic and structural properties of the natural dyes curcumin, bixin and indigo
(Peer reviewed; Journal article, 2021)An optical, electronic and structural characterisation of three natural dyes potentially interesting for application in organic solar cells, curcumin (C21H20O6), bixin (C25H30O4) and indigo (C16H10N2O2), was performed. ... -
Electronic properties of reduced molybdenum oxides
(Journal article; Peer reviewed, 2017)The electronic properties of MoO3 and reduced molybdenum oxide phases are studied by density functional theory (DFT) alongside characterization of mixed phase MoOx films. Molybdenum oxide is utilized in compositions ranging ... -
Electronic Properties of Si as an Intermediate Band Solar Cell - A Density Functional Theory Study
(Master thesis, 2018)Crystalline silicon is widely used as a solar cell material in modern day society. This report investigates the possibility of adding an additional energy band placed within the conventional band gap, in order to increase ... -
Electronic structure of thermoelectric and ferro-electric materials: - Advanced transmission electronmicroscopy studies
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:158, Doctoral thesis, 2010)This thesis describes TEM studies related to the electronic structure of thermoelectric and ferroelectric materials. Compounds within the thermoelectric skutterudite class of materials were examined using Electron ... -
Elemental electron energy loss mapping of a precipitate in a multi-component aluminium alloy
(Journal article, 2016)The elemental distribution of a precipitate cross section, situated in a lean Al-Mg-Si-Cu-Ag-Ge alloy, has been investigated in detail by electron energy loss spectroscopy (EELS) and aberration corrected high angle annular ... -
Elements of the Microscopic Origins of Time-Reversal Symmetry Breaking in Phase-Frustrated Multiband Superconductors
(Master thesis, 2021)En rekke teoretiske og eksperimentelle studier har blitt publisert som følge av oppdagelsen av superledning i materialene ved navn jernpniktider. Med disse oppdagelsene som motivasjon og et mål om å utvide den teoretiske ...