Sökning: "micro-photoluminescence"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet micro-photoluminescence.

  1. 1. Micro-photoluminescence and micro-Raman spectroscopy of novel semiconductor nanostructures

    Författare :Stanislav Filippov; Irina Buyanova; Weimin Chen; M. Godlewski; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Low-dimensional semiconductor structures, such as one-dimensional nanowires (NWs) and zerodimensional quantum dots (QDs), are materials with novel fundamental physical properties and a great potential for a wide range of nanoscale device applications. Here, especially promising are direct bandgap II-VI and III-V compounds and related alloys with a broad selection of compositions and band structures. LÄS MER

  3. 2. Optical Studies of Single Quantum Dots

    Författare :Jonas Persson; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nano-optics; quantum optics; photoluminescence; micro-photoluminescence; single photon generation; Semiconductory physics; Halvledarfysik; low-dimensional structures; quantum dots; Stranski-Krastanow; Fysicumarkivet A:2004:Persson;

    Sammanfattning : This thesis presents spectroscopic studies of single self-assembled InP quantum dots (QDs). The electronic properties of these QDs have been studied by photoluminescence (PL) and scanning tunnelling luminescence (STL). The QDs were grown in the Stranski-Krastanow mode and were embedded in GaInP. LÄS MER

  4. 3. Chemical fabrication of ZnO nanostructures and their emission properties: Cholesterol biosensing applications utilizing ZnO and Graphene

    Författare :Muhammad Israr Qadir; Magnus Willander; Omer Nour; Jinhui Song; Linköpings universitet; []
    Nyckelord :Zinc oxide; aqueous chemical synthesis; nanostructures; light emitting diode; electrochemical biosensor.; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Zinc oxide (ZnO) is an inorganic compound, owing to wide band gap and large binding energy, and holds promising potential in the fields of semiconducting as well as piezoelectric applications with excellent stability and reliability. In addition, ZnO has a plenteous number of nanoscale structures containing unique physical, chemical, electrical, sensing and optical properties. LÄS MER

  5. 4. Bright and strain-tunable semiconductor quantum dot devices

    Författare :Thomas Lettner; Val Zwiller; Klaus D. Jöns; Oliver Benson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum dots; single–photons; entanglement; strain–tunable; kvantprickar; singelfotoner; sammanflätning; töjnings-justerbar; Optik och fotonik; Optics and Photonics;

    Sammanfattning : Optically active semiconductor quantum dots have proven to be excellent single- and entangled-photon sources, with applications in quantum optics and quantum photonics. These sources are considered crucial in the development of future photonic quantum technology, such as quantum communication, quantum computation and quantum metrology. LÄS MER

  7. 5. Optical Characterization of GaN/AIGaN Quantum Well Structures

    Författare :Hamid Haratizadeh; Tatiana Shubina; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The III-nitride material family is particularly well suited for optoelectronic applications, e.g. as UV light emitters in future lighting solutions that are expected to replace the incandescent and fluorescent lamps in use today. LÄS MER