Search for dissertations about: "semiconductor PHYSICS THESIS"

Showing result 31 - 35 of 258 swedish dissertations containing the words semiconductor PHYSICS THESIS.

  1. 31. Photoluminescence Characteristics of III-Nitride Quantum Dots and Films

    Author : Martin Eriksson; Per-Olof Holtz; Peder Bergman; Fredrik Karlsson; Volodymyr Khranovskyy; Yasuhiko Arakawa; Linköpings universitet; []

    Abstract : III-Nitride semiconductors are very promising in both electronics and optical devices. The ability of the III-Nitride semiconductors as light emitters to span the electromagnetic spectrum from deep ultraviolet light, through the entire visible region, and into the infrared part of the spectrum, is a very important feature, making this material very important in the field of light emitting devices. READ MORE

  2. 32. Growth and optical properties of III-V semiconductor nanowires: : Studies relevant for solar cells

    Author : Vilgaile Dagyte; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Nanowire; semiconductor; Photovoltaics; Epitaxy; Optoelectronics; GaAs; GaInP; Fysicumarkivet A:2018:Dagyté;

    Abstract : This thesis deals with epitaxial growth and optical properties of semiconductor nanowires with implications and insights about materials for solar cells. The chapters leading up to the papers give a broader background and an introduction to the field and include nanowires and their synthesis, semiconductor properties, solar cell operational principles, light interaction with a nanowire array, and optical characterization of such arrays. READ MORE

  3. 33. Many-Body effects in Semiconductor Nanostructures

    Author : Carl-Johan Wesslén; Eva Lindroth; Morten Førre; Stockholms universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; coupled cluster; nanostructure; quantum dot; quantum ring; concentric quantum ring; many body pertubation theory; fysik; Physics;

    Abstract : Low dimensional semiconductor structures are modeled using techniques from the field of many-body atomic physics. B-splines are used to create a one-particle basis, used to solve the more complex many-body problems. READ MORE

  4. 34. Carrier dynamics in semiconductor quantum dots

    Author : Jörg Siegert; Ari Friberg; Jesper Mørk; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; quantum dots; photoluminescence; time-resolved; spectroscopy; semiconductor; Optics; Optik;

    Abstract : This thesis presents results of time-resolved photoluminescence experiments conducted on several different self-assembled InGaAs/GaAs and InAs/GaAs semiconductor quantum dot (QD) structures. Depending on the application in mind, different structural, electronic or optical properties have a different weight of importance. READ MORE

  5. 35. Mesonic fusion - pion and eta meson production in light ion nuclear fusion reactions

    Author : Irina Zartova; Per-Erik Tegnér; Thomas Nilsson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; pionic fusion; halo nuclei; cross sections; light mesons; eta-meson; WASA detector; Nuclear physics; Kärnfysik; Nuclear Physics; kärnfysik;

    Abstract : The present thesis describes two experiments performed in the storage ring CELSIUS at The Svedberg Laboratory in Uppsala. In the first experiment the importance of three - nucleon clustering in the six - nucelon system was investigated. The total cross section for the production of the ground state and the 3. READ MORE