Sökning: "ZnO nanorods"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden ZnO nanorods.

  1. 1. Zinc Oxide Bulk and Nanorods

    Författare :Peter Klason; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; zinc oxide; Schottky contact; buckling; annealing; semiconductor growth; ion implantation; photoluminescence; nanorods;

    Sammanfattning : Zinc Oxide (ZnO) has many promising properties for optoelectronics, sensor applications, transparent electronics etc. To mention a few, ZnO has a large exciton binding energy (60 meV at room temperature) and a direct wide bandgap energy of 3.37 eV. In addition, ZnO is piezoelectric and shows more resistance to radiation damage than Si and GaN. LÄS MER

  3. 2. Synthesis of metal oxide nanostructures, their characterization and chemical sensing applications

    Författare :Zafar Hussain Ibupoto; Magnus Willander; Bansi Malhotra; Linköpings universitet; []
    Nyckelord :Hydrothermal method; seed layer; ZnO nanorods; ZnO nanotubes; immunosensor; iron ferrite; glucose sensor; well aligned ZnO nanorods; CuO nanoleaves; CuO nanosheets; CuO bundle of nanowires;

    Sammanfattning : The existence of nanomaterials is a revolutionizing step towards the fabrication of nanodevices and it enhances the enthusiasm of the researchers for the development of new devices with improved performance relative to that of bulk material based devices. Among the nanomaterials, the metal oxide nanostructures have drawn the attention of scientific community in the development of different biochemical and biomedical nanodevices in the recent time. LÄS MER

  4. 3. Lighting and Sensing Applications of Nanostructured ZnO, CuO and Their Composites

    Författare :Ahmed ELtahir Elsharif Zainelabdin; Magnus Willander; Omer Nour; Leonard J. Brillson; Linköpings universitet; []
    Nyckelord :ZnO; CuO; Nanostructures; Composites; ZnO polymer LEDs; humidity sensor; p-n heterojunction;

    Sammanfattning : Low dimensional nanostructures of zinc oxide (ZnO), cupric oxide (CuO), and their composite nanostructures possess remarkable physical and chemical properties. Fundamental understanding and manipulation of these unique properties are crucial for all potential applications. LÄS MER

  5. 4. Nanostructured ZnO and metal chalcogenide films for solar photocatalysis

    Författare :Taha Ahmed; Tomas Edvinsson; Jiefang Zhu; Mats Johnsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; photocatalysis; zinc oxide; quantum dots; nanorods; quantum confinement; low-dimensional; cathodic electrodeposition; Raman spectroscopy; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : The increasing demand for clean energy and safe water resources has driven the development of efficient and sustainable technologies. Among these technologies, photocatalysis using semiconducting materials has emerged as a promising solution for both solar hydrogen generation and water purification. LÄS MER

  7. 5. Microfabricated Gas Sensors Based on Hydrothermally Grown 1-D ZnO Nanostructures

    Författare :Mingzhi Jiao; Hugo Nguyen; Klas Hjort; Anita Lloyd Spetz; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gas sensor; zinc oxide; on-chip; hydrothermal growth; nanorods; nanowires; annealing; palladium oxide; photoluminescence; alloy; sensitivity; selectivity; stability;

    Sammanfattning : In this thesis, gas sensors based on on-chip hydrothermally grown 1-D zinc oxide (ZnO) nanostructures are presented, to improve the sensitivity, selectivity, and stability of the gas sensors.Metal-oxide-semiconductor (MOS) gas sensors are well-established tools for the monitoring of air quality indoors and outdoors. LÄS MER