Sökning: "thin film barrier"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden thin film barrier.

  1. 1. Flashlamp Annealing for Improved Ferroelectric Junctions

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Theodor Blom; [2023]
    Nyckelord :Flashlamp annealing; ferroelectricity; hafnia oxide; III-V semiconductor; thermal annealing; device performance; Technology and Engineering;

    Sammanfattning : The effects of flashlamp annealing (FLA) on the quality of ferroelectric HfxZr1–xO2 (HZO) interfaces, integrated on InAs substrates, are evaluated. For the integration of ferroelectric HZO on III-V semiconductors the crystallization via rapid thermal processing (RTP) can severely degrade the HZO/III-V interface. LÄS MER

  3. 2. Återvinning av solcellsmoduler i Sverige : En undersökning av de energitekniska, ekonomiska och politiska förutsättningarna

    Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Stephanie Andersson; [2021]
    Nyckelord :Circular economy; End-of-life management; Energy requirement; Photovoltaic modules; PV Recycling; Silicon modules; Thin film modules; Waste management; Avfallshantering; Cirkulär ekonomi; End-of-life management; Energiåtgång; Innovationskritiska material; Monokristallina solceller; Polykristallina solceller; Solcellsmoduler; Solcellsåtervinning; Tunnfilmssolceller;

    Sammanfattning : The solar industry is one of the fastest-growing energy industries in the global market. The reason is a combination of the falling prices of modules and inverters and increased conversion to fossil-free energy production. LÄS MER

  4. 3. A comparative study of ZnO i-layer deposited with ALD and PVD for CIGS solar cells

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Joel Johansson Byberg; [2019]
    Nyckelord :CIGS; ZnO; ZnMgO; solar cells; thin film; zinc oxide; window layer; ALD; PVD;

    Sammanfattning : Two identified setbacks for CIGS based devices in order to obtain higher efficiency are parasitic absorption in the window layer structure and losses in open-circuit voltage due to bad interfaces. This study investigated how the performance of the solar cell is affected by depositing intrinsic ZnO (i-ZnO) and ZnMgO with atomic layer deposition (ALD) instead of the conventional sputtering. LÄS MER

  5. 4. Transient Dynamics and Core Tunneling in Vertical Spin-Vortex Pairs

    Master-uppsats, KTH/Nanostrukturfysik

    Författare :Milton Persson; [2019]
    Nyckelord :Spin-vortex; ultra fast vortex dynamics; milli-Kelvin temperatures; macroscopic quantum tunneling; Spinnvirvel; ultrasnabb virveldynamik; milli-Kelvin temperaturer; makroskopisk kvanttunnling;

    Sammanfattning : Spin-vortices in vertically spaced pairs of thin elliptical Permalloy nanoparticles are investigated. The two vortex cores with parallel out-of-plane magnetization exhibit a strong monopole-like attraction through the spacer much thinner than the core length, thus forming a bound core-core pair. LÄS MER

  7. 5. Fabrication of Tunneling Field Effect Transistors (TFETs) and the study of graphene

    Kandidat-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Carlos Nunez Lobato; [2018]
    Nyckelord :graphene; semiconductor; exfoliation; boron nitride; Physics and Astronomy;

    Sammanfattning : After the discovery of graphene in 2004, a single layer of graphite, the assembly of 2D materials became a promising research area in solid state Physics. This thesis explores fabrication of 2D-heterostructures that aim to probe into graphene’s electronic structure with the Tunneling Field Effect Transistor (TFET). LÄS MER