Sökning: "current-voltage"

Visar resultat 1 - 5 av 68 avhandlingar innehållade ordet current-voltage.

  1. 1. Processing and characterization of silicon carbide (6H-SiC and 4H-SiC) contacts for high power and high temperature device applications

    Detta är en avhandling från Kista : Mikroelektronik och informationsteknik

    Författare :Sang Kwon Lee; KTH.; [2002]
    Nyckelord :Silicon carbide; ohmic and schottky contacts; co-evaporation; current-voltage; powre devices; nano-particles; Schottky barrier height lowering; TLM structures;

    Sammanfattning : Silicon carbide is a promising wide bandgap semiconductormaterial for high-temperature, high-power, and high-frequencydevice applications. However, there are still a number offactors that are limiting the device performance. LÄS MER

  2. 2. Electrical contacts, Ohmic and Schottky, to 4H-Silicon Carbide for device applications

    Detta är en avhandling från Stockholm : Elektrotekniska system

    Författare :Sang-Kwon Lee; KTH.; [2000]
    Nyckelord :silicon carbice; Ohmic; Schottky contacts; co-evaporation; current-voltage; capacitance-voltage measurement; power device; 4H-SiC; TLM;

    Sammanfattning : .... LÄS MER

  3. 3. Processing and characterization of GaN/SiC heterojunctions and SiC bipolar transistors

    Detta är en avhandling från Kista : Mikroelektronik och informationsteknik

    Författare :Erik Danielsson; KTH.; [2001]
    Nyckelord :silicon carbide; gallium nitride; device simulation; bipolar junction transistor; heterojunction; heterojunction bipolar transistor; current-voltage measurement; capacitance-voltage measurement; self-heating;

    Sammanfattning : Silicon Carbide (SiC) and Gallium Nitride (GaN) are bothwide bandgap semiconductors that have been suggested for highpower, high voltage, and high temperature applications. Themost investigated SiC devices so far are the Schottky diode,PiN diode and the field effect transistor. LÄS MER

  4. 4. Chloride Homeostasis in Central Neurons

    Detta är en avhandling från Umeå : Umeå University

    Författare :Tushar Yelhekar; Umeå universitet.; [2016]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chloride concentration; current-voltage relation; interpolation; voltage ramp; reversal potential; [Cl–]i recovery; KCC2; extracellular matrix; GABAA receptor; chloride leak conductance; neurosteroid; fysiologi; Physiology;

    Sammanfattning : The overall aim of the present thesis is to clarify the control of intracellular chloride homeostasis in central neurons, because of the critical role of chloride ions (Cl–) for neuronal function. Normal function of the central nervous system (CNS) depends on a delicate balance between neuronal excitation and inhibition. LÄS MER

  5. 5. On the Zero and Low Field Vortex Dynamics An Experimental Study of Type-II Superconductors

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Örjan Festin; Uppsala universitet.; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; high temperature superconductors; thermal fluctuations; YBCO; MgB2; anisotropic superconductors; vortex dynamics; Kosterlitz-Thouless transition; current voltage characteristics; complex conductivity; Flux noise; Teknisk fysik; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik;

    Sammanfattning : Dynamic properties of type-II superconductors have been experimentally studied in zero and low magnetic fields using SQUID magnetometry and I–V measurements.In zero magnetic field close to the critical temperature, the physical properties of type-II superconductors are dominated by spontaneously created vortices. LÄS MER