Sökning: "tunna substrat"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden tunna substrat.

  1. 1. Modulation of the optical properties of quantum dots by surface acoustic waves

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Tanguy Schetelat; [2023]
    Nyckelord :Nanophotonics; Quantum dots; Surface acoustic waves; Interdigital tansducers; Optomechanical coupling; Nanofotonik; Kvantprickar; Akustika yt-vågor; Interdigital tansducers; Optomekanisk koppling;

    Sammanfattning : Semiconductor quantum dots (QDs) are considered to be a crucial part of future quantum technologies due to their enormous potential as efficient sources of single and indistinguishable photons. Single photons are necessary to transport quantum information over large distances through the existing global fibre optic network. LÄS MER

  3. 2. Semi-extensiva gröna tak i urban miljö : växtkombinationer för växtbäddar med begränsat substrat

    Kandidat-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Elin Wiström Bolding; [2020]
    Nyckelord :gröna tak; semi-extensiva gröna tak; växtkomposition; ståndort; green roofs; semi-extensive green roofs; planting design;

    Sammanfattning : Det här arbetet handlar om semi-extensiva gröna tak. I en tid där förtätning av staden där ofta de gröna miljöerna bebyggs är ett av de vanligare alternativen att lyfta upp en del av de miljöerna på taken. LÄS MER

  4. 3. How Topography Influences the Fate of Human Neural Progenitor Cells

    Master-uppsats, Lunds universitet/Tillämpad biokemi; Lunds universitet/Beräkningskemi

    Författare :Jacob Karlström; [2020]
    Nyckelord :biomaterials; cell culture; electrospinning; nanofibers; 3d; neural progenitor cells; in vitro models; nanotopography; blebbistatin; mechanotransduction; nucleus analysis; immunocytochemistry; differentiation; applied biochemistry; tillämpad biokemi; Biology and Life Sciences; Technology and Engineering;

    Sammanfattning : Novel biomimetic three-dimensional scaffolds have emerged over the last decades, and are promising for applications in regenerative therapies, as well as in in vitro disease modelling and drug testing. Thanks to their added dimension, these scaffolds are able to more accurately mimic the topography of native cellular microenvironments compared to traditionally used two-dimensional culture substrates. LÄS MER

  5. 4. Preparation and Characteristics of Bi0.5Na0.5TiO3 based Lead-Free thin films by Pulsed Laser Deposition

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Ge Jiang; [2018]
    Nyckelord :PLD method; piezoelectric thin film; electrical properties; PLD-metoden; piezoelektrisk tunnfilm; elektriska egenskaper;

    Sammanfattning : Lead-based piezoelectric materials, such as PbZrxTi1-xO3 (PZT), have attracted considerable attention and have been widely used in actuators, sensors and transducers due to their excellent electric properties. However, considering the toxicity of lead and its oxides, environmentally friendly lead-free piezoelectric materials are attracting more attention as potential replacements for PZT. LÄS MER

  7. 5. Metod för mätning av restspänningar i PVD-beläggningar på tunna substrat

    Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Philip Eriksson; Emily Hall; Felix Jacobson; Ebba Saikoff; Johanna Söderberg; Pontus Theill; Erika Åkerfeldt; [2016]
    Nyckelord :Residual stress measurement; PVD coatings; thin substrates; foil; Mätning av restspänningar; PVD skikt; tunna substrat; folie;

    Sammanfattning : The aim of this project was to, based on a given idea, develop and evaluate a method for measuring residual stress in thin PVD coatings. AlCrN was deposited, by PVD, on thin circular samples of stainless steel foil and the radius of the emerged curvature was measured using an optical profilometer. LÄS MER