Sökning: "Semiconductor"

Visar resultat 11 - 15 av 817 avhandlingar innehållade ordet Semiconductor.

  1. 11. Optical Characterization of III-Nitride and II-V Semiconductor Nanowires

    Författare :David Lindgren; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; III-Nitride; III-V; Fysicumarkivet A:2014:Lindgren; Semiconductor; Nanowire; Photoluminescence; Cathodoluminescence;

    Sammanfattning : The optical properties of III-V semiconductor nanowires for optical devices have been investigated by photoluminescence spectroscopy, cathodoluminescence spectroscopy and cathodoluminescence imaging. The material systems that have been studied include the nitrides (InN, GaN and AlN) and ternaries, and a few common phosphides and arsenides. LÄS MER

  3. 12. Doping of Semiconductor Nanowires

    Författare :Jesper Wallentin; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metal-organic vapour phase epitaxy; III-V semiconductor materials; nanowires; doping; solar cells; F:2013:Wallentin;

    Sammanfattning : In this thesis, in situ doping during growth of III-V semiconductor nanowires, primarily for photovoltaic applications, is investigated. The nanowires were grown by metalorganic vapor phase epitaxy (MOVPE), with gold seed particles. LÄS MER

  4. 13. Optical spectroscopy of InGaAs quantum dots

    Författare :Arvid Larsson; Per Olof Holtz; Artur Zrenner; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; quantum dot; semiconductor; optical properties; spin; transport; wetting layer; polarization; kvantprick; halvledare; optiska egenskaper; spin; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Materials science; Teknisk materialvetenskap; Condensed matter physics; Kondenserade materiens fysik; Semiconductor physics; Halvledarfysik;

    Sammanfattning : The work presented in this thesis deals with optical studies of semiconductor quantum dots (QDs) in the InGaAs material system. It is shown that for self-assembled InAs QDs, the interaction with the surrounding GaAs barrier and the InAs wetting layer (WL) in particular, has a very large impact on their optical properties. LÄS MER

  5. 14. Semiconductor lasers for photonic integration

    Författare :Peter Modh; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface-emitting lasers; semiconductor lasers; laser resonators; integrated optics; deep-etched DBR; unstable resonator;

    Sammanfattning : .... LÄS MER

  7. 15. Electronic properties of narrow bandgap semiconductor surfaces studied by photoelectron spectroscopy

    Författare :Örjan Olsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; InAs; InSb; electronic; core level; valence band; photoelectron; surface; semiconductor;

    Sammanfattning : .... LÄS MER