Sökning: "GaInP"

Visar resultat 16 - 20 av 24 avhandlingar innehållade ordet GaInP.

  1. 16. Growth and Characterization of Tandem-Junction Photovoltaic Nanowires

    Författare :Lukas Hrachowina; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; III–V semiconductors; nanowire; photovoltaics; tandem junction; MOVPE; EBIC; Fysicumarkivet A:2022:Hrachowina;

    Sammanfattning : In order to satisfy the growing energy needs of our planet’s population, and at the same time mitigate global warming, sustainable energy sources such as solar energy are indispensable. In addition to conventional silicon-based solar cells, nanotechnology offers interesting approaches for complementary applications. LÄS MER

  3. 17. 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. 18. Image Processing in High Resolution Transmission Electron Microscopy of Inorganic Materials

    Författare :Anna Carlsson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oorganisk kemi; Inorganic chemistry; electron diffraction; Electron microscopy; image processing;

    Sammanfattning : High resolution transmission electron microscopy and digital image processing has been used to investigate the structure and properties of inorganic materials. The image processing was performed with the programming language Semper. All routines are listed in the appendix. LÄS MER

  5. 19. Three-Dimensional Metal-Semiconductor Heterostructures for Device Applications

    Författare :Lars-Erik Wernersson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Schottky contacts; space-charge spectroscopy; ballistic transport; Coulomb repulsion; electron interference; resonant tunnelling; lateral confinement; heterojunction permeable base transistor; resonant tunnelling diodes; Fysicumarkivet A:1998:Wernersson; Fysik; Physics; resonant tun; epitaxial overgrowth;

    Sammanfattning : Fabrication and characterisation of buried metal contacts in compound semiconductors are demonstrated. The contacts have been investigated due to their usage both as gates in transistors and as active or passive elements in novel devices. LÄS MER

  7. 20. Time-resolved optical characterisation of defect-rich semiconductors

    Författare :Andreas Gaarder; KTH; []
    Nyckelord :;

    Sammanfattning : This thesis explores carrier trapping and recombination indefect-rich semiconductors, and methods for materialcharacterisation. Optimal manufacturing parameters areestablished for materials to be used in the ultrafast devicesneeded for future telecommunication applications. LÄS MER