Search for dissertations about: "charge transport dye-sensitized cell"

Showing result 1 - 5 of 11 swedish dissertations containing the words charge transport dye-sensitized cell.

  2. 1. Studies of Charge Transport Processes in Dye-sensitized Solar Cells

    Author : Kristofer Fredin; Anders Hagfeldt; Mukundan Thelakkat; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; solar cell; mesoporous; dye-sensitized; model; simulation; electron transport; trap distribution; Physical chemistry; Fysikalisk kemi;

    Abstract : Dye-sensitized solar cells (DSCs) have attained considerable attention during the last decade because of the potential of becoming a low cost alternative to silicon based solar cells. Although efficiencies exceeding 10% in full sunlight have been presented, major improvements of the system are however limited. READ MORE

  4. 2. Interactions in Dye-sensitized Solar Cells

    Author : Helena Greijer Agrell; Anders Hagfeldt; Gerrit Boschloo; Laurence Peter; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; solar cells; photovoltaics; dye-sensitized; mesoporous; nanostructured; Raman scattering; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi;

    Abstract : The interactions between the molecular constituents in dye-sensitized solar cells were studied with UV-VIS and IR spectroscopy, Raman scattering, conductivity and electron accumulation measurements.From stability studies of the dye, bis(tetrabutylammonium)cis-bis(thiocyanato) bis(2,2’-bipyridine-4-carboxylic acid, 4’-carboxylate) ruthenium(II), in the complete solar cell, the thiocyanate ion ligand was found to be lost from the dye. READ MORE

  5. 3. Charge Transport Processes in Mesoporous Photoelectrochemical Systems

    Author : Jarl Nissfolk; Anders Hagfeldt; Gerald J. Meyer; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; solar cell; dye-sensitized; impedance; electron transport; mesoporous; Physical chemistry; Fysikalisk kemi;

    Abstract : During the last decade, the dye sensitised solar cell (DSC) has attracted much attention. The technology has a potential to act as a new generation of photovoltaic device, it has also increased our knowledge within the field of photoelectrochemistry. READ MORE

  6. 4. Developing Environmentally Friendly Dye-sensitized Solar Cells

    Author : Hanna Ellis; Gerrit Boschloo; Anders Hagfeldt; Erik Johansson; Aldo di Carlo; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dye-sensitized solar cells; dye; cobalt; triphenylamine; titanium dioxide; aqueous; PEDOT; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Abstract : Due to climate change and its effects, alternative renewable energy sources are needed in the future human society. In the work of this thesis, the Dye-sensitized Solar Cell (DSC) has been investigated and characterized. READ MORE

  7. 5. Organic Hole Transport Materials for Solid-State Dye-Sensitized and Perovskite Solar Cells

    Author : Jinbao Zhang; Erik Johansson; Gerrit Boschloo; Anders Hagfeldt; Nick Vlachopoulos; Ellen Moons; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photoelectrochemical polymerization; PEDOT; dye; hole transport material; small molecule; perovskite solar cell;

    Abstract : Solid-state dye-sensitized solar cells (ssDSSCs) and recently developed perovskite solar cells (PSCs) have attracted a great attention in the scientific field of photovoltaics due to their low cost, absence of solvent, simple fabrication and promising power conversion efficiency (PCE). In these types of solar cell, the dye molecule or the perovskite can harvest the light on the basis of electron excitation. READ MORE