Sökning: "Roll-to-roll"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet Roll-to-roll.

  1. 1. Crystallinity of Sputtered TiO2 Thin Films: a Study of the Heating and Plasma Influence on the Growth

    Master-uppsats,

    Författare :oussama ezzaher; [2023]
    Nyckelord :;

    Sammanfattning : AbstractHigh-Power Impulse Magnetron Sputtering (HIPIMS) of TiO2 thin films enhances their photocatalyticproperties compared to the films prepared by standard sputtering methods, especially when no substrateheating is employed. With no heating, the coatings present an amorphous structure that benefits from theionization of the sputtered flux granted by HiPIMS, with respect to their photocatalytic performance. LÄS MER

  3. 2. Implications of different sensor resolutions and contrast settings in a roll-to-roll process, considering the speed of the process vs identifying defects, for manufacturing green batteries : A study on the effect of light conditions on thedetection of defects in cathode foil in batteries

    Master-uppsats, KTH/Mekatronik

    Författare :Behnam Yosef Nezhad Arya; [2021]
    Nyckelord :Contrast; Surface; Resolution; Speed; Defect; Sensor; Battery; Computer vision; Roll-to-roll; Contact Image Sensor; Mechatronics; Ljusinställning; Yta; Kontrast; Resolution; Hastighet; Defekt; skada; Sensor; Batteri; Computer vision; Roll-to-roll; Contact Image Sensor; Mekatronik.;

    Sammanfattning : This Master’s thesis work is about the conditions that can affect the identification of defects in lithium-ion batteries. In lithium batteries, there are cathode and anode, which are separated with electrically insulative but ionically conductive electrolytes and separators. LÄS MER

  4. 3. Using conventional manufacturing methods for industrialising the production at a start-up company

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Hanna Hartikainen; Anna Willman; [2019]
    Nyckelord :;

    Sammanfattning : This project was initiated in collaboration with a start-up company in the solar cell industry, aiming at producing organic photo voltaic cells in a roll-to-roll process. The company is currently undergoing a transformation from a process validation stage towards a small-scale pilot production, with the goal to reach a steady state production during Q1 2020. LÄS MER

  5. 4. 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

  7. 5. LED Array Frequency Dependent Photocurrent Imaging of Organic Solar Cell Modules

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Elin Anderberg; [2017]
    Nyckelord :LED array; organic solar cells; characterization; LBIC; OBIC;

    Sammanfattning : To mitigate the risk for devastating climate changes, there is an urgent need to change the energy production from the current fossil based to renewable sources. Solar cells will contribute to an increasing share of the future energy systems. LÄS MER