Sökning: "chromophore"

Visar resultat 1 - 5 av 54 avhandlingar innehållade ordet chromophore.

  1. 1. Synthesis of Organic Chromophores for Dye Sensitized Solar Cells

    Detta är en avhandling från Stockholm : KTH

    Författare :Daniel Hagberg; KTH.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acceptor; chromophore; donor; dye sensitized solar cells; HOMO and LUMO energy level tuning; linker; organic dye.; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Sammanfattning :   This thesis deals with development and synthesis of organic chromophores for dye sensitized solar cells. The chromophores are divided into three components; donor, linker and acceptor. The development of efficient organic chromophores for dye sensitized solar cells starts off with one new organic chromophore, D5. LÄS MER

  2. 2. Polarization portraits of lightharvesting antennas: from single molecule spectroscopy to imaging

    Detta är en avhandling från Department of Chemistry, Lund University

    Författare :Rafael Camacho Dejay; Lund University.; Lunds universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Energy transfer; Single molecule spectroscopy; Exciton; Fluorescence microscopy; Fluorescence polarization; Light-harvesting; Chromophore; Conjugated Polymer; Photosynthesis;

    Sammanfattning : Multichromophoric systems are very important in photosynthesis and any device that uses solar energy for its operation. This is because multichromophoric light-harvesting antennas are responsible for the absorption of light and the efficient transfer of the absorbed energy toward distinct places where it is to be used or stored. LÄS MER

  3. 3. Structure and distribution of alpha-1-microglobulin proteins

    Detta är en avhandling från Department of Cellular and Molecular Biology. Sölvegatan 39 22100 Lund

    Författare :Tord Berggård; Lund University.; Lunds universitet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Proteins; lysine; chromophore; placenta; immunohistochemistry; albumin; prothrombin; plasma; bikunin; lipocalin; alpha-1-microglobulin; protein HC; enzymology; Proteiner; enzymologi;

    Sammanfattning : This thesis describes studies of the structure and tissue distribution of alpha-1-microglobulin (a1-m), a member of the lipocalin protein superfamily with immunosuppressive properies. It was shown that a1-m appears in human plasma in five major forms. LÄS MER

  4. 4. Design, Synthesis and Properties of Organic Sensitizers for Dye Sensitized Solar Cells

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Karl Martin Karlsson; KTH.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Acceptor; chromophore; donor; dye; sensitized; energy level; HOMO LUMO; linker; phenoxazine; sensitizer; solar cell; triphenylamine; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; NATURAL SCIENCES Chemistry Organic chemistry Organic synthesis; NATURVETENSKAP Kemi Organisk kemi Organisk syntes;

    Sammanfattning : This thesis gives a detailed description of the design and synthesis of new organic sensitizers for Dye sensitized Solar Cells (DSCs). It is divided in 7 chapters, where the first gives an introduction to the field of DSCs and the synthesis of organic sensitizers. LÄS MER

  5. 5. Quantum Chemical Modeling of Dye-Sensitized Titanium Dioxide Ruthenium Polypyridyl and Perylene Dyes, TiO2 Nanoparticles, and Their Interfaces

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Maria J. Lundqvist; Uppsala universitet.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; density functional theory; chromophore; nanocrystal; interface; photoexcitation; triplet state; surface electron transfer; electronic coupling strength; Kvantkemi; NATURAL SCIENCES Chemistry Theoretical chemistry Quantum chemistry; NATURVETENSKAP Kemi Teoretisk kemi Kvantkemi;

    Sammanfattning : Quantum chemical calculations have been used to model dye-sensitized nanostructured titanium dioxide systems that can be used in solar cells for solar energy to electricity conversion. Structural, electronic and spectral properties of isolated dyes and both bare and dye-sensitized TiO2 have been calculated with density functional theory, providing detailed information about both the separate parts and the dye-TiO2 interface. LÄS MER