Sökning: "Zinc Oxide ZnO"

Visar resultat 11 - 15 av 21 uppsatser innehållade orden Zinc Oxide ZnO.

  1. 11. Potential Nano-Ecotoxicity of Zinc Oxide Nanoparticles Through Its Influence to Fungi

    Kandidat-uppsats, Mittuniversitetet/Institutionen för teknik och hållbar utveckling

    Författare :Ying Wang; [2014]
    Nyckelord :;

    Sammanfattning : Nanotechnology is a fast growing scientific area, and the related industries have rising in the air. Nanomaterials that involved in the nanotechnology are rather small and with unique properties that we have not yet fully understood. LÄS MER

  3. 12. Thermo-economic study and optimization of solar hydrogen generation plants

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Rahul Gaurang Udiaver; [2014]
    Nyckelord :Solar; CSP; Hydrogen; Optimization; Modelling; Thermo-economic;

    Sammanfattning : The main goal of this project is to calculate the maximum theoretical efficiencies of a solar hydrogen generation plant and also to carry out economic analysis of the solar and chemical plants. The final combined results would comprise the optimized values of the annual hydrogen production with respect to the overall costs. LÄS MER

  4. 13. Printed Schottky Diodes based upon Zinc Oxide Materials

    Master-uppsats, Fysik och elektroteknik; Tekniska högskolan

    Författare :Emma Persson; [2013]
    Nyckelord :Schottky diode; semiconductor; rectifier; diode bridge; printed electronics; Teknisk fysik; Teknisk fysik;

    Sammanfattning : The aim of this master thesis was to develop a process for fabricating Schottky diodes, using techniques that are suitable for cheap large volume mass production e.g. printing, with tetrapod structured ZnO as the semiconductor. LÄS MER

  5. 14. Fabrication and Optical Properties of ZnO Nanocrystal/GaN Quantum Well Based Hybrid Structures

    Master-uppsats, Tunnfilmsfysik; Tekniska högskolan

    Författare :Kuo Chieh-Yi; [2012]
    Nyckelord :ZnO; GaN; Hybrid Structure;

    Sammanfattning : Optical properties of hybrid structures based on zinc oxide nanocrystals (NCs) and Gallium Nitride quantum well (QW) has been studied. The ZnO NCs thin films on the top of GaN QW structures were fabricated using spin coating. The surface morphology was characterized by scanning electron microscopy (SEM). LÄS MER

  7. 15. ZnO nanoparticles : synthesis of Ga-doped ZnO, oxygen gas sensing and quantum chemical investigation

    Magister-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Alexander Hagelin; [2011]
    Nyckelord :ZnO zinc oxide gallium Ga doped indium In O2 oxygen gas sensing quantum chemical quantum chemistry computational chemistry synthesis combustion EDOC electrochemistry wet chemical XRD SEM DOS HOMO LUMO nitrogen dioxide NO2 response Langmuir;

    Sammanfattning : Doped ZnO nanoparticles were synthesized by three different methods – electrochemical deposition under oxidizing conditions (EDOC) , combustion method and wet chemical synthesis – for investigating the oxygen gas sensing response. Ga-doped ZnO was mostly synthesized but also In-doped ZnO was made. LÄS MER