Sökning: "Zinc Oxide ZnO"

Visar resultat 6 - 10 av 21 uppsatser innehållade orden Zinc Oxide ZnO.

  1. 6. 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

  3. 7. Exposure of zinc oxide nanoparticles on lung epithelium: A comparison between submerged and air-liquid interface cultures

    Master-uppsats, Lunds universitet/Ergonomi och aerosolteknologi

    Författare :Julia Dobric; [2019]
    Nyckelord :lung toxicology; nanotoxicology; aerosol; air-liquid interface; ALI; NACIVT; nanoparticles; zinc oxide; Biology and Life Sciences;

    Sammanfattning : Zinc oxide nanoparticles (ZnO NPs) are often used in sunscreen and other cosmetic products with sun protection. They are also candidate to be used for various biological applications such as drug delivery, or in material science in for example solar cells. LÄS MER

  4. 8. Degradation of Microplastic Residuals in Water by Visible Light Photocatalysis

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Tajkia Syeed Tofa; [2018]
    Nyckelord :Microplastics; Low density Polyethylene LDPE ; Heterogeneous photocatalytic degradation; Zinc oxide nanorods; Visible light.;

    Sammanfattning : Microplastic (MP) pollution has recently been recognized as a threat to the biosphere including humans due to its widespread distribution, persistent nature and infinitesimal size. This study focused on the solid phase degradation of microplastic residues (particularly low density polyethylene, LDPE) in water through heterogeneous photocatalysis process by designed photocatalysts of zinc oxide nanorods (ZnO NRs) and platinum nanoparticles deposited on zincoxide nanorods (Pt NPs-ZnO NRs) under visible light irradiation. LÄS MER

  5. 9. Evaluation of Zinc Oxide Nano-Microtetrapods for Biomolecule Sensing Applications

    Master-uppsats, KTH/Funktionella material, FNM

    Författare :Wei Zhao; [2015]
    Nyckelord :zinc oxide tetrapods; nano-microstructure; glucose oxidase; glucose sensor;

    Sammanfattning : Zinc oxide (ZnO) is a well-known II-VI semiconductor material that has gained renewed interest in the past decade due to the developments of growth technologies and the availability of high-quality ZnO bulk single crystals. Owing to a wide direct band gap (3. LÄS MER

  7. 10. Study of CVD deposited i-ZnO layers in CIGS thin film solar cells

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

    Författare :Fredrik Larsson; [2015]
    Nyckelord :CVD; CIGS; intrinsic; ZnO; thin film; solar cell;

    Sammanfattning : CIGS thin film solar cells usually include a thin layer of intrinsic zinc oxide (i-ZnO) deposited on a CdS buffer layer by sputtering. However an interest has grown in using chemical vapor deposition (CVD) instead. LÄS MER