Search for dissertations about: "fullerene crystals"

Showing result 1 - 5 of 6 swedish dissertations containing the words fullerene crystals.

  2. 1. Evolution and control of the three dimensional functional microstructure of Polymer:Fullerene photovoltaic blends

    Author : Olof Bäcke; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crosslinking; fullerene crystals; tomography; transmission electron mi- croscopy; organic solar cell; in situ; polymer:fullerene film; thermal degradation;

    Abstract : Polymer:fullerene bulk-heterojunction thin films show great promise for use as active layers in organic solar cells. However, their low thermal stability is a hindrance that complicates the manufacturing and influences the lifetime of devices. READ MORE

  4. 2. Electron transfer and fragmentation in fullerene collisions

    Author : Henning Zettergren; Henrik Cederquist; Paul-Antoine Hervieux; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fullerene; Physics; Fysik;

    Abstract : In this thesis, we present results from detailed gas phase studies of intrinsic properties of fullerenes (C60) and clusters of fullerenes as probed by slow multiply charged (atomic or cluster) ions in combination with coincidence time-of-flight mass spectrometry. We have investigated the structures, stabilities, and the electron mobilities of multiply charged clusters of fullerenes, (C60)nr+ (r=2-5). READ MORE

  5. 3. New Fullerene Materials Obtained in Solution and by High Pressure High Temperature Treatment

    Author : Alexandr Talyzin; B. Sundqvist; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; fullerene; solution; high pressure; Raman spectroscopy; polymerisation; XRD; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : Crystallization of C60 and C70 from organic solution often leads to the formation of new solvates and other fullerene compounds. In the present thesis, a number of such solvates were obtained and their phase transitions studied using in situ "in solution" techniques. READ MORE

  6. 4. Electronic Structure and Transport Properties of Carbon Based Materials

    Author : Anders Hansson; Gianaurelio Cuniberti; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular crystals; Organic crystals; Nano technique; Density-Functional Theory DFT ; Fermi; Physics; Fysik;

    Abstract : In the past decade the interest in molecular electronic devices has escalated. The synthesis of molecular crystals has improved, providing single crystals or thin films with mobility comparable with or even higher than amorphous silicon. Their mechanical flexibility admits new types of applications and usage of electronic devices. READ MORE

  7. 5. Impact of Glass Formation on the Thermal Stability of Non-Fullerene Solar Cells

    Author : Sandra Hultmark; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : As the world faces major challenges with the climate change and the depletion of non-renewable resources, development of renewable sources is crucial towards a more sustainable future. Organic solar cell is an excellent alternative as a renewable resource with many advantages. READ MORE