Sökning: "ohmic contacts"

Visar resultat 16 - 20 av 32 avhandlingar innehållade orden ohmic contacts.

  1. 16. Functional Nanostructures for Gas Sensors

    Författare :Hossein Fashandi; Per Eklund; Hans Högberg; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This research focuses on three main topics within the aims of FUNMAT, which are:Ohmic contacts to high-temperature chemical gas sensors.Studies of catalytic monolayers on active gate metal in SiC-based gas sensors.Investigating potential sensing properties of the nanoscale material MXene. LÄS MER

  3. 17. Development of Process Technology for Photon Radiation Measurement Applications

    Författare :Henrik Andersson; Hans-Erik Nilsson; Göran Thungström; Per-Erik Hellström; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : This thesis presents work related to new types of photo detectors and their applications. The focus has been on the development of process technology and methods by means of experimentation and measurements. LÄS MER

  4. 18. Development and Characterisation of SiC Based Sensors for Harsh Environments

    Författare :Lars Unéus; Jacobus H. Visser; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The introduction of chemical gas sensors in our environment is a process that started many years ago. However, although the process has been rather slow over the years, the interest for chemical gas sensors is rising due to the growing environmental awareness. LÄS MER

  5. 19. Nanostructured materials for gas sensing applications

    Författare :Kristina Buchholt; Per Eklund; Lars Hultman; Anita Lloyd Spetz; Harry L. Tuller; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : In this Thesis I have investigated the use of nanostructured films as sensing and contact layers for field effect gas sensors in order to achieve high sensitivity, selectivity, and long term stability of the devices in corrosive environments at elevated temperatures. Electrochemically synthesized Pd and Au nanoparticles deposited as sensing layers on capacitive field effect devices were found to give a significant response to NOx with small, or no responses to H2, NH3, and C3H6. LÄS MER

  7. 20. Schottky barriers and Schottky barrier based devices on Si and SiC

    Författare :Christer Fröjdh; KTH; []
    Nyckelord :;

    Sammanfattning : This work is devoted to a study of the formation andcharacterisation of Schottky Barriers on differentsemiconductors with an extension to the development of devicesbased on Schottky barriers. The major part of the work has beendone on 6H-SiC, but Si and SiGe alloys have also been used. LÄS MER