Browsing NTNU Open by Author "Wells, Justin"
Now showing items 1-20 of 33
-
A Spectroscopic Study of in situ Magnetic Doping of Novel Layered Materials for Spintronics
Hunvik, Kristoffer William (Master thesis, 2016)MoS2 is a layered material in the family of the transition metal dicalchogenides (TMDCs), which hosts interesting spin physics. Even though the TMDCs are nonmagnetic in their bulk form, a local breaking of inversion symmetry ... -
An investigation into the GW plus Cumulant Expansion
Kvindesland, Mons (Master thesis, 2019)Den skjermede Green fuksjonen plus cumulant utvideleses tilnærmingen er en relativt ny approksimasjonsmetode som ble først brukt på 1990-tallet. Det er en approksimasjonsteori som gir relativt nøyaktige resultater for ... -
An X-ray Photoelectron Spectroscopy study of DySx created by depositing Dy on MoS2 - For application in spintronics
Christensen, Magnus Sebastian (Master thesis, 2017)There are many interesting materials under research for spintronics today, including the Transition Metal Dichalcogenides (TMDCs). They are particularly interesting because they collectively host materials which are ... -
Cleaning methods and aluminium growth on yttrium iron garnet
Sætren, Tord (Master thesis, 2019)Å forstå tynn film vekst på yttrium jern granat(YIG) er eit vikitig steg å ta før ein kan studere magnon-elektronvekselvikning for å koble elektronikk og spinntronikk. Magnon-elektronvekselvirkning på eit metall-magnetiskisolator ... -
Control of Magnon Condensates
Frostad, Therese (Doctoral theses at NTNU;2024:63, Doctoral thesis, 2024)Spintronics is a technology driven field aimed at harnessing the electron spin for novel devices. This is in contrast to traditional electronics, where the electron charge is used as an information carrier. Advances in ... -
Coupled cluster investigations of spectroscopic properties in molecular and crystalline systems
Hutcheson, Anders (Doctoral theses at NTNU;2022:343, Doctoral thesis, 2022)Theoretical studies of spectroscopic properties are of great value, both by themselves and in combination with experiments. The highly accurate coupled cluster methods are attractive options for such studies. Due to their ... -
Degradation of the chemotherapy drug 5-fluorouracil on medical-grade silver surfaces
Risinggård, Helene Kjær; Cooil, Simon Phillip; Mazzola, Federico; Hu, Di; Kjærvik, Marit; Østli, Elise Ramleth; Patil, Nilesh; Preobrajenski, Alexei; Evans, Andrew; Breiby, Dag Werner; Trinh, Thuat; Wells, Justin (Journal article; Peer reviewed, 2018) -
Degradation of the Chemotherapy Drug 5-Fluorouracil on Surfaces
Kjær, Helene (Master thesis, 2015)The catalytic effect of different materials concerning degradation of the chemo therapy drug 5-Fluorouracil (5-Fu) has been studied using X-ray Photoelectron Spectroscopy and X-ray Absorption Spectroscopy. The materials ... -
Design of a 5-axis Manipulator for Use in Angle-Resolved Photoemission Spectroscopy
Kjeken, Eirik (Master thesis, 2016)The design of a 5-axis manipulator for use in Angle-Resolved Photoemission Spectroscopy (ARPES) is presented along with an outline of the specific challenges it was designed to adress. The theory and nomenclature of X-ray ... -
Effect on band gap of ligands-exchange in solution processed CZTS thin films, analyzed through PES study
Guglielminotti, Arianna (Master thesis, 2019)In this work, Photoelectron Spectroscopy (PES) was employed to analyse elemental composition and energy band gap of Cu2ZnSnS4 (CZTS) stabilized nanoink deposited films, with the aim of understanding the behavior and effects ... -
Engineering Quantum States in δ-doped Semiconductors
Holt, Ann Julie Utne (Master thesis, 2017)The effect of quantum confinement, creating a two-dimensional electron gas was studied using angle-resolved photoemission spectroscopy. This was done by creating phosphorus δ-layers in silicon, varying in thickness from ... -
Exploring Electronic Confinement in Si:P δ-layers
Nyborg, Thomas (Master thesis, 2018)In this thesis, the electronic states of a quantum well system in silicon is investigated. The confinement is induced by a thin dopant profile called a delta-layer, creating an effective two-dimensional metallic region ... -
Fabrication of Diffractive Honeycomb Structures on Silicon Using Photolithography and Maskless Aligner and Investigation of Optical and Electrical Properties of the Structures
Danielsen, Jon Anders (Master thesis, 2018)Surface texturing is an important method for increasing absorption of light in solar cells. This is done by creating surface structures that increase the optical path-length of photons within the cell, through light-trapping ... -
Fundamental Theories and Methodologies for Assessing Radiation Hardness in Hydrogen-Terminated Diamond
Rieker, Vilde Flognfeldt (Master thesis, 2018)The origin of conductivity in hydrogen terminated diamond, and the effect of MoO3 deposition is explained. Further, the various effects that can be induced upon particle irradiation and the mechanisms behind them is ... -
Green’s Function Approach to Quantum Phenomena in Heterostructures with Spin- Polarization and Coherence
Fyhn, Eirik Holm (Doctoral theses at NTNU;2023:238, Doctoral thesis, 2023)Kvantemekanikken som muliggjør fremtidens informasjonsteknologi Moderne datamaskiner produserer en mengde varme som er sammenlignbart med varmen fra panelovner. Denne varmeproduksjonen, sammen med utfordringer relatert ... -
Investigating spin-split surface states on semimetals and correlation effects in a ferromagnet
Bakkelund, Johannes (Master thesis, 2022)Denne avhandlingen består av en samling av fire prosjekter, hvor hver kombinerer en eksperimentell og teoretisk fremgangsmåte. Prosjektene er hovedsakelig basert på de samme eksperimentelle teknikkene, fotoemisjonsspektroskopi, ... -
Investigation of Unoccupied Electronic Bands in Graphene
Hadamek, Tomas (Master thesis, 2018)In recent years, a lot attention has been paid to various two-dimensional materials due to their unique properties stemming from the spacial refinement of one of the material's dimensions. Regardless of the incredible ... -
Iron-Mediated Growth of Graphene on SiC for Radiation Detection
Götz, Adam (Master thesis, 2017)A proposed radiation sensor exploits graphene's high electron mobility and sensitivity to miniscule electric fields to attain a novel approach for radiation detection. Realizing such a sensor is contingent on controlled ... -
Low-Temperature Growth of Graphene on a Semiconductor
Røst, Håkon Ivarssønn; Chellappan, Rajesh Kumar; Strand, Frode Sneve; Grubišić-Čabo, Antonija; Reed, Benjamen P.; Prieto, Mauricio J.; Tǎnase, Liviu C.; Caldas, Lucas de Souza; Wongpinij, Thipusa; Euaruksakul, Chanan; Schmidt, Thomas; Tadich, Anton; Cowie, Bruce; Li, Zheshen; Cooil, Simon; Wells, Justin (Peer reviewed; Journal article, 2021)The industrial realization of graphene has so far been limited by challenges related to the quality, reproducibility, and high process temperatures required to manufacture graphene on suitable substrates. We demonstrate ... -
Natural Dyes as Candidate Materials for Organic Solar Cells - An Optical, Electronic and Structural Characterisation
Richter, Annika (Master thesis, 2018)Natural dyes strongly absorbing light in the visible spectrum are appealing ma- terials for the use in organic solar cells, due to their direct availability from nature. An especially interesting potential application ...