Sökning: "wide band gap devices"

Visar resultat 21 - 25 av 41 avhandlingar innehållade orden wide band gap devices.

  1. 21. Fabrication Technology for Efficient High Power Silicon Carbide Bipolar Junction Transistors

    Författare :Reza Ghandi; Martin Domeij; Anant Agarwal; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Other engineering physics; Övrig teknisk fysik;

    Sammanfattning : The superior characteristics of Silicon Carbide as a wide band gap semiconductor have motivated many industrial and non-industrial research groups to consider SiC for the next generations of high power semiconductor devices. The SiC Bipolar Junction Transistor (BJT) is one candidate for high power applications due to its low on-state power loss and fast switching capability. LÄS MER

  3. 22. Device Fabrication and Photosensitizing Role of ZnO Nanostructures in Photodynamic Therapy of Cancer

    Författare :Kishwar Sultana; Magnus Willander; Omer Nour; Arne Rosén; Linköpings universitet; []
    Nyckelord :Zinc oxide nanostructures; light emitting diodes; reactive oxygen species; photosensitizer; cancer cell; photodynamic therapy; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : In nanoscience and nanotechnology, zinc oxide (ZnO) is gaining much research attention due to direct wide band gap (3.3 eV), large exciton binding energy (60 meV), and deep level defects emissions that cover the whole visible range. LÄS MER

  4. 23. The Role of Interfacial Microstructure of Perovskite Thin FIlms - A High Resolution and In Situ Study

    Författare :Johan Börjesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; KTO; STO; Perovskites; thin film; interfaces; SRO; microstructure; HAADF STEM; TEM; in situ TEM; LAO;

    Sammanfattning : Perovskite based materials have recently shown to have many unique properties that make them suitable for future electronic devices. In this thesis, the role of the interfacial microstructure on the properties of perovskite thin film heterostructures has been investigated. LÄS MER

  5. 24. Synthesis of ZnO and transition metals doped ZnO nanostructures, their characterization and sensing applications

    Författare :Chan Oeurn Chey; Magnus Willander; Omer Nour; Andrej Kuznetsov; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Synthesis ZnO nanostructures; TM-doped ZnO NRs; Hydrothermal method; Biosensors; Piezoresistive sensors; UV photodetectors; Diluted magnetic semiconductors;

    Sammanfattning : Nanotechnology is a technology of the design and the applications of nanoscale materials with their fundamentally new properties and functions. Nanosensor devices based on nanomaterials provide very fast response, low-cost, long-life time, easy to use for unskilled users, and provide high-efficiency. LÄS MER

  7. 25. Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

    Författare :Kimleang Khun; Magnus Willander; Omer Nour; Christos Tsamis; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrothermal method; metal oxide nanostructure; composite seed solution; wellaligned ZnO nanorods; composite structures; glucose and dopamine non-enzymatic sensors; heavy metals; supramolecular; UV photodetector sensor;

    Sammanfattning : Research on nanomaterials has been revolutionized in the last few years because of the attractive properties they have in comparison to the bulk phase of similar materials. These properties are physical, chemical, catalytic and optical. LÄS MER