Browsing Fysisk institutt by Title
Now showing items 828-847 of 3664
-
(Master thesis / Masteroppgave, 2007)Oppgaven tar for seg analyse av data fra et kjernefysisk forsøk utført ved Oslo syklotronlaboratorium våren 2005. En folie med naturlig nikkel ble bestrålet med helium-ioner. Naturlig nikkel består for det meste av isotopet ...
-
(Master thesis / Masteroppgave, 2013)A study of the laser doping technique from a phosohorus glass layer as a dopant source was carried out. This was done with the purpose of implementing a selective emitter in a crystal silicon solar cell. The main laser ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)The elastic waves generated by impactors hitting rough and erodible surfaces are studied. For this purpose, beads of variable materials, diameters, and velocities are dropped on (i) a smooth PMMA plate, (ii) stuck glass ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)I consider neutron electric dipole moment contributions induced by flavor changing Standard Model Higgs boson couplings to quarks. Such couplings might stem from non-renormalizable SU(2)L×U(1)Y invariant Lagrange terms ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)I consider contributions to the neutron electric dipole moment within two-Higgs-doublet models which allow for small flavor changing neutral Higgs couplings. In a previous paper, I considered flavor changing interactions ...
-
(Master thesis / Hovedoppgave, 2004)In this thesis, I will address the so called forward problem of electro-magnetics. That is, given a setup of electrodes on a conductive material, can we compute where the current will pass through? More specifically, from ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Droplets covered with densely packed solid particles, often called Pickering droplets, are used in a variety of fundamental studies and practical applications. For many applications, it is essential to understand the ...
-
Electrical and Magnetic Behavior of GdOH Thin Films: A Search for Hydrogen Anion Superconductivity (Chapter / Bokkapittel / SubmittedVersion, 2020)Anomalous resistive and magnetic behavior of GdOH thin films, which belong to the novel class of materials known as oxyhydrides, is reported. The oxyhydrides contain hydrogen in its rare negatively-charged anion state in ...
-
(Doctoral thesis / Doktoravhandling, 2019)This thesis brings together fundamental studies presented in five papers with the focus on the investigation of defects in the wide bandgap semiconductor β-Ga2O3. A broad range of methods was applied; in particular the ...
-
(Doctoral thesis / Doktoravhandling, 2012)Zinc oxide (ZnO) has been used for many years in a wide range of products, but not for its semiconducting properties. Recent improvements made in the production of ZnO generated a new interest towards this material. Indeed, ...
-
(Doctoral thesis / Doktoravhandling, 2013)Electrical characterization of point defects in silicon (Si) is carried out to study fundamental defects present in Si solar cell structures. The interactions between various defect complexes is investigated, while paying ...
-
(Doctoral thesis / Doktoravhandling, 2015)Thermal evolution of impurity-defect complexes in proton-irradiated mono-crystalline silicon material has been investigated by deep level transient spectroscopy (DLTS). Especially, the interaction between common impurities ...
-
(Master thesis / Masteroppgave, 2007)Epitaxial p+/n–/n+ silicon diodes have been irradiated with 6 MeV electrons to a dose of 1014 cm−2, and isochronal and isothermal annealings at the temperatures 325 – 360 C has been performed. The reaction kinetics of VO, ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Reliable single-photon emission is crucial for realizing efficient spin-photon entanglement and scalable quantum information systems. The silicon vacancy (VSi) in 4H-SiC is a promising single-photon emitter exhibiting ...
-
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2018)The evolution of sheet resistance of n-type In2O3 and Ga2O3 exposed to bombardment with MeV 12C and 28Si ions at 35 K is studied in situ. While the sheet resistance of Ga2O3 increased by more than eight orders of magnitude ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract The leading cause of health loss and deaths worldwide are cardiovascular diseases. A predictor of cardiovascular diseases and events is the arterial stiffness. The pulse wave velocity (PWV) can be used ...
-
(Master thesis / Masteroppgave, 2010)This thesis describes the development of an Electrical Power System (EPS) prototype for the CubeSTAR nanosatellite. Without a power system the other subsystems on the satellite cannot function, therefore a continuous and ...
-
Electrical Properties of a p–n Heterojunction of Li-Doped NiO and Al-Doped ZnO for Thermoelectrics (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)The electrical properties of a p–n heterojunction of polycrystalline p-type Ni0.98Li0.02O and n-type Zn0.98Al0.02O have been investigated for potential applications in high-temperature oxide-based thermoelectric generators ...
-
(Doctoral thesis / Doktoravhandling, 2018)This thesis is all about applying an electrical voltage to human skin and measuring the corresponding electrical current. A recording (on any tissue) is non-linear when the electrical properties are affected by the applied ...
-
(Doctoral thesis / Doktoravhandling, 2013)Iron (Fe) is an important impurity in solar-grade silicon which contributes substantially in degrading the efficiency of solar cells. The degradation is mainly caused by the Fe atoms situating at an unperturbed tetrahedral ...