Sökning: "Semiconductor Physics"

Visar resultat 21 - 25 av 310 avhandlingar innehållade orden Semiconductor Physics.

  1. 21. Semiconductor Nanoelectronic Devices Based on Ballistic and Quantum Effects

    Författare :Jie Sun; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semiconductor; Quantum Dots; Ballistic Transport; InGaAs InP 2DEG; Nanoelectronics;

    Sammanfattning : As current silicon-based microelectronic devices and circuits are approaching their fundamental limits, the research field of nanoelectronics is emerging worldwide. With this background, the present thesis focuses on semiconductor nanoelectronic devices based on ballistic and quantum effects. The main material studied was a modulation doped In0. LÄS MER

  3. 22. Bilayer Light-Emitting Electrochemical Cells for Signage and Lighting Applications

    Författare :E. Mattias Lindh; Ludvig Edman; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; Light-emitting electrochemical cell; Signage; Display; Luminescent line art; Inkjet printing; Direct-write printing; fysik; Physics; Electronics; elektronik;

    Sammanfattning : Artificial light surrounds us in a manifold of shapes. It is mainly utilized for illumination, but also for graphical communication of complex and evolving messages and information, among other things. It can be generated in different ways with incandescent lamps and fluorescent tubes constituting two common examples. LÄS MER

  4. 23. Confinement Sensitivity in Quantum Dot Spin Relaxation

    Författare :Carl Wesslén; Eva Lindroth; Andrei Manolescu; Stockholms universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fysik; Physics;

    Sammanfattning : Quantum dots, also known as artificial atoms, are created by tightly confining electrons, and thereby quantizing their energies. They are important components in the emerging fields of nanotechnology where their potential uses vary from dyes to quantum computing qubits. Interesting properties to investigate are e.g. LÄS MER

  5. 24. Vertical III-V Semiconductor Devices

    Författare :Tomas Bryllert; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Halvledarfysik; Semiconductory physics; heterostructure barrier varactor frequency multiplier; field effect transistor; resonant tunneling; artificial molecule; terahertz; nanowire; Quantum dots;

    Sammanfattning : This thesis is based on three projects that deal with vertical III-V semiconductor devices. The work spans over basic research as well as more applied aspects of III-V semiconductor technology. All projects have in common that they rely on advanced epitaxial growth to form the starting material for device fabrication. LÄS MER

  7. 25. 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