Sökning: "Light-harvesting"

Visar resultat 41 - 45 av 70 avhandlingar innehållade ordet Light-harvesting.

  1. 41. Glass-forming ternary blends: towards stable Polymer Solar Cells

    Författare :Amaia Diaz de Zerio Mendaza; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; organic photovoltaics; glass formation.; fullerenes; ternary blends; thermal stability;

    Sammanfattning : The globally increasing use of electricity goes hand in hand with climate change and the gradual depletion of fossil sources of fuel. To address these challenges renewable sources of energy are in high demand. LÄS MER

  3. 42. Functional Photo-electrochemical Devices for Solar Cellsand Solar Fuels Based on Molecular Components

    Författare :Lin Li; Licheng Sun; Roel van de Krol; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; artificial photosynthesis; dye sensitized solar cell; hydrogen generation catalyst; nickel oxide NiO ; titanium dioxide TiO2 ; water oxidation catalyst; water splitting;

    Sammanfattning : This thesis concerns the development and the study of molecular functional photo-electrochemical cells (PEC) for solar cells and solar fuels.The first chapter gives a general introduction about photosynthesis, dye-sensitized solar cell and photo-electrochemical device for water splitting. LÄS MER

  4. 43. Big Lessons from Small Bacteria : Following Photo-driven Processes in Photosynthetic Systems with Multidimensional Spectroscopy

    Författare :Egle Bukarte; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Two-dimensional electronic spectroscopy; Ultrafast spectroscopy; Chlorophyll; Bacterial reaction centers; Photosynthetic unit; Purple bacteria; Green bacteria;

    Sammanfattning : Sunlight is a plentiful, continuously flowing source of energy, fuelling life on Earth as we know it. To use this potential, plants, cyanobacteria and photosynthetic bacteria evolved to absorb solar radiance and convert it into a chemically stable form by performing a process known as photosynthesis. LÄS MER

  5. 44. Stress response in the cyanobacterium Synechocystis sp. PCC 6803

    Författare :Helder Miranda; Christiane Funk; Hans-Erik Åkerlund; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cyanobacteria; High light; heat stress; ROS; Photosynthesis; Photosystem II; Deg HtrA proteases; small CAB-like proteins; Refraction-2D™; MALDI-TOF; 2D-gel; GC-MS; PCA; OPLS-DA; EPS; S-layer; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Adaptation to environmental changes is important for the survival of living organisms. Under extreme abiotic conditions, organic molecules (such as lipids, proteins and nucleic acids) are prone to damage. LÄS MER

  7. 45. Phosphorylation in the thylakoid membrane - role of substrate activation

    Författare :Martin Vink; Anastasios Melis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fotosyntesen; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Phosphorylation of specific side chains in target proteins by protein kinases is a major means of regulation of cellular processes. In the thylakoid membrane of higher plants, the redox-controlled phosphorylation of photosystem II (PSII) and light-harvesting complex II (LHCII) proteins regulates energy distribution between the two photosystems and PSII protein dynamics. LÄS MER