Sökning: "window layer"

Visar resultat 1 - 5 av 23 uppsatser innehållade orden window layer.

  1. 1. 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

  2. 2. Improving Daylighting Utilization in LTH Study Center

    Master-uppsats, Lunds universitet/Energi och ByggnadsDesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Rifat Tabassoom Tumpa; Inez Eugenia; [2019]
    Nyckelord :Daylighting; energy demand; window to wall ratio; daylight factor; daylight autonomy; heating and cooling demand; electric lighting dependency; Technology and Engineering;

    Sammanfattning : Daylighting is a free source of light that fosters a direct connection to nature. It has a great potential to enhance the health and productivity of the building inhabitants, to improve thermal and visual comfort in indoor spaces, and to increase energy efficiency in buildings. LÄS MER

  3. 3. Improved interconnect materials for next-generation Solid Oxide Fuel Cells

    Master-uppsats, KTH/Materialvetenskap

    Författare :Pablo Collantes; [2019]
    Nyckelord :Solid Oxide Fuel Cells; High Temperature Corrosion; Self-healing; Interconnects;

    Sammanfattning : Solid Oxide Fuel Cells (SOFC) are attractive candidates in the search for cleaner and energy efficient production due to their numerous advantages such as fuel flexibility, modularity and exceptional efficiencies when combined heat and power is harnessed. A key element in its design are the interconnects which are mainly manufactured from custom ferritic stainless steels to carry the electricity between two adjacent cells. LÄS MER

  4. 4. Within and Beyond : A collaboration by the Glass Craft duo BarroLevén

    Master-uppsats, Konstfack/Keramik & Glas

    Författare :Kristina Levén; [2018]
    Nyckelord :craft; glass; Foamglas; leaded techniques; film; space in between; Ma; pause; awe; atmosphere; public space; affect; contemplative; existentialism; spirituality; rehabilitation; emotional;

    Sammanfattning : In this collaborative Craft Master project by Ulrika Barr and Kristina Levén, we have investigated how glass can affect an environment to create a space in between. A “Ma-space” that could offer a pause in the everyday life in relation to the public sphere. We have worked parallel with two expressions of glass in relation to a room. LÄS MER

  5. 5. Traffic Load Predictions Using Machine Learning : Scale your Appliances a priori

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

    Författare :Michail Xirouchakis; [2018]
    Nyckelord :Network Function Virtualization; Software Defined Networking; Machine Learning; Predictions; Network Function Virtualization; Software Defined Networking; Maskininlärning; Prognoser;

    Sammanfattning : Layer 4-7 network functions (NF), such as Firewall or NAPT, have traditionally been implemented in specialized hardware with little to no programmability and extensibility. The scientific community has focused on realizing this functionality in software running on commodity servers instead. Despite the many advancements over the years (e.g. LÄS MER