Search for dissertations about: "Hole mobility"

Showing result 1 - 5 of 44 swedish dissertations containing the words Hole mobility.

  2. 1. Experimental Studies of Charge Transport in Single Crystal Diamond Devices

    Author : Saman Majdi; Jan Isberg; Ricardo S. Sussmann; Uppsala universitet; []
    Keywords : Single crystal diamond; carrier transport; CVD diamond; time-of-flight; mobility; IR detector; compensation; diamond diode; drift velocity; thermal detector;

    Abstract : Diamond is a promising material for high-power, high-frequency and high- temperature electronics applications, where its outstanding physical properties can be fully exploited. It exhibits an extremely high bandgap, very high carrier mobilities, high breakdown field strength, and the highest thermal conductivity of any wide bandgap material. READ MORE

  4. 2. Modeling and characterization of novel MOS devices

    Author : Stefan Persson; KTH; []
    Keywords : MOSFET; SiGe; high-k dielectric; metal gate; mobility; charge sheet model; retrograde channel structure; intrinsic charge; intrinsic capacitance; contact resistivity;

    Abstract : Challenges with integrating high-κ gate dielectric,retrograde Si1-xGexchannel and silicided contacts in future CMOStechnologies are investigated experimentally and theoreticallyin this thesis. ρMOSFETs with either Si or strained Si1-xGex surface-channel and different high-κgate dielectric are examined. READ MORE

  5. 3. Organic Hole-Transport Materials for Perovskite Solar Cells

    Author : Linqin Wang; Licheng Sun; Nam-Gyu Park; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hole-transport material; Photovoltaic device; Perovskite solar cell; Dopant-free; Carbazole; Spiro[fluorene-9; 9 -xanthene]; Small organic molecule; Crosslinked polymer; Solution-processed.; Kemi; Chemistry;

    Abstract : Research on perovskite solar cells (PSCs) has undergone dramatic development since the first cells were reported in 2009, and the past decade has witnessed a significant breakthrough on their power conversion efficiencies (PCEs) from 3.8% to 25%. READ MORE

  6. 4. Hole Transport Materials for Solid-State Mesoscopic Solar Cells

    Author : Lei Yang; Anders Hagfeldt; Erik Johansson; Gerrit Boschloo; Fengling Zhang; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mesoscopic solar cells; solid-state dye-sensitized solar cells; organometallic halide perovskite; hole transport materials; mesoporous TiO2; conjugated polymer; sensitizer; transient absorption spectroscopy; photo-induced absorption spectroscopy; in-situ photoelectrochemical polymerization; spiro-OMeTAD; P3HT; TPAA; MeO-TPD; bis-EDOT; DEH; Li ion migration; charge recombination; electron lifetime;

    Abstract : The solid-state mesoscopic solar cells (sMSCs) have been developed as a promising alternative technology to the conventional photovoltaics. However, the device performance suffers from the low hole-mobilities and the incomplete pore filling of the hole transport materials (HTMs) into the mesoporous electrodes. READ MORE

  7. 5. Hydrothermal mobilisation of Au and other metals in the oceanic crust: Implications for the formation of VMS deposits

    Author : Clifford Patten; Iain Pitcairn; Rodney Allen; Alasdair Skelton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ODP Hole 1256D; hydrothermal fluids; seawater-derived fluids; hydrothermal alteration; metal mobility; volcanic massive sulphide deposit;

    Abstract : .... READ MORE