Search for dissertations about: "Fullerene"

Showing result 1 - 5 of 70 swedish dissertations containing the word Fullerene.

  1. 1. Electron transfer and fragmentation in fullerene collisions

    University dissertation from Stockholm : Fysikum

    Author : Henning Zettergren; Stockholms universitet.; [2005]

    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

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

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Alexandr Talyzin; Uppsala universitet.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; fullerene; solution; high pressure; Raman spectroscopy; polymerisation; XRD; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP 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

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

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Olof Bäcke; [2015]
    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. 4. Fabricating designed fullerene nanostructures for functional electronic devices

    University dissertation from Umeå : Umeå universitet

    Author : Christian Larsen; Umeå universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organic electronics; Organic field-effect transistor; Organic photovoltaics; Fullerene C60; PCBM; Photochemical transformation; Resist-free lithography; C60 Nanorod; Solution processable; nanomaterials; nanomaterial; fysikalisk kemi; Physical Chemistry; fysik; Physics; Materials Science; materialvetenskap;

    Abstract : A long-term goal within the field of organic electronics has been to developflexible and functional devices, which can be processed and patterned withlow-cost and energy-efficient solution-based methods. This thesis presents anumber of functional paths towards the attainment of this goal via thedevelopment and demonstration of novel fabrication and patterningmethods involving the important organic-semiconductor family termedfullerenes. READ MORE

  5. 5. Morphology and material stability in polymer solar cells

    University dissertation from Karlstad : Karlstads universitet

    Author : Rickard Hansson; Karlstads universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymer solar cell; photovoltaics; morphology; photo-degradation; conjugated polymer; fullerene; synchroton-based techniques; Physics; Fysik;

    Abstract : Polymer solar cells are promising in that they are inexpensive to produce, and due to their mechanical flexibility have the potential for use in applications not possible for more traditional types of solar cells. The performance of polymer solar cells depends strongly on the distribution of electron donor and acceptor material in the active layer. READ MORE