Sökning: "semiconductors"

Visar resultat 1 - 5 av 249 avhandlingar innehållade ordet semiconductors.

  1. 1. Compound semiconductors : defects and relocation of atoms during growth sputtering and diffusion

    Detta är en avhandling från Stockholm : KTH

    Författare :Margareta K. Linnarsson; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; secondary ion mass spectrometry SIMS ; cascade mixing; redistribution; diffusion; defects; passivation; SiC; A1xGa1-xAs; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Sammanfattning : .... LÄS MER

  2. 2. Photon Upconversion in Heavily Doped Semiconductors

    Detta är en avhandling från Stockholm : KTH

    Författare :Kilian Mergenthaler; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; III-V semiconductor materials; nanowires; photoluminescence; Photon upconversion; semiconductors; doping; Fysicumarkivet A:2016:Mergenthaler;

    Sammanfattning : In this thesis the luminescence properties of highly doped semiconductors are studied with focus on degenerately n-doped InP. It is demonstrated how photoluminescence measurements on degenerately doped semiconductors allow an estimation of the doping concentration without need for electrical contacts. LÄS MER

  3. 3. Defects in semiconductors

    Detta är en avhandling från Stockholm : KTH

    Författare :Lars Tilly; [1993]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1993:Tilly;

    Sammanfattning : [abstract missing].... LÄS MER

  4. 4. Crystallographic Studies of Ternary Chalcogenides and Organic Semiconductors

    Detta är en avhandling från Department of Materials Chemistry, Lund University

    Författare :Céline Besnard; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phase equilibria; Kondenserade materiens egenskaper:struktur; egenskaper termiska och mekaniska ; kristallografi; fasjämvikt; crystallography; thermal and mechanical properties; Condensed matter:stucture; thiazine derivatives; quinoline derivatives; hexacene-quinone; substituted tetracene; rubrene derivatives; manganese telluride; organic semiconductors; niobium sulfide intercalation compounds; thiospinel;

    Sammanfattning : X-ray diffraction methods have been used to study the crystal structure of different compounds, both organic and inorganic. The inorganic compounds were all synthesized by solid state reactions. A new compound, Re4As6S3, was synthesized and its structure was solved by Rietveld methods. LÄS MER

  5. 5. Magnetism of Semiconductors and Metallic Multilayers

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Victor Stanciu; Per Nordblad; Peter Svedlindh; Poul Erik Lindelof; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Magnetic order; Curie temperature; magnetic anisotropy; diluted magnetic III-V semiconductors; metallic magnetic multilayers; interlayer exchange coupling; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Sammanfattning : Magnetic properties of diluted magnetic semiconductors and magnetic metallic multilayers are investigated by SQUID magnetometry.By doping GaAs with magnetic Mn2+ ions under well defined growth conditions, one obtains a diluted magnetic semiconductor, (Ga,Mn)As, in which the randomly-distributed magnetic ions act as acceptor centers. LÄS MER