Search for dissertations about: "Fullerene"

Showing result 21 - 25 of 98 swedish dissertations containing the word Fullerene.

  2. 21. The morphology of polyfluorene : fullerene blend films for photovoltaic applications

    Author : Ana Sofia Anselmo; Håkan Rensmo; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials Science; Organic Photovoltaics; Polymer Solar Cells; Materialteknik; Materials Engineering;

    Abstract : Polymer photovoltaic systems whose photoactive layer is a blend of a semiconducting polymer with a fullerene derivative in a bulk heterojunction configuration are amongst the most successful organic photovoltaic devices nowadays. The three-dimensional organization in these layers (the morphology) plays a crucial role in the performance of the devices. READ MORE

  4. 22. Carbon Nanostructures – from Molecules to Functionalised Materials : Fullerene-Ferrocene Oligomers, Graphene Modification and Deposition

    Author : Michael Nordlund; Helena Grennberg; Mogens Brøndsted Nielsen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fullerenes; Graphene; Deposition; Functionalization; Organometallic complexes; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : The work described in this thesis concerns development, synthesis and characterisation of new molecular compounds and materials based on the carbon allotropes fullerene (C60) and graphene.A stepwise strategy to a symmetric ferrocene-linked dumbbell of fulleropyrrolidines was developed. READ MORE

  5. 23. Fullerene-like carbon nitride thin solid films

    Author : Jörg Neidhardt; Brian C. Holloway; Linköpings universitet; []
    Keywords : ;

    Abstract : The subject of this thesis is to establish synthesis-structure-property- performance relations for nano structured carbon nitride thin solid films. This material consists of bent and frequently intersecting nitrogen-containing graphite basal planes, where nitrogen plays an important role for the initiation of inter-planar cross-links and the induction of curvature via pentagon formation, much like in Buckminster Fullerenes - hence, the terminology "fullerene-like carbon nitride". READ MORE

  6. 24. Studies of Charge Transport and Energy Level in Solar Cells Based on Polymer/Fullerene Bulk Heterojunction

    Author : Abay Gadisa; Olle Inganäs; Vladimir Dyakonov; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bulk heterojunction; Charge transport; Space charge limited; Bipolar transport; Origin of open circuit voltage; Polymer-fullerene blend; Soft contact lamination; Polarized infrared emission; Physics; Fysik;

    Abstract : π-Conjugated polymers have attracted considerable attention since they are potential candidates for various opto-electronic devices such as solar cells, light emitting iodes, photodiodes, and transistors. Electronic de vices based on conjugated polymers can be easily processed at low temperature using inexpensive technologies. READ MORE

  7. 25. Voltage Losses in Non-fullerene Organic Solar Cells

    Author : Yuming Wang; Feng Gao; Fengling Zhang; René Janssen; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Non-fullerene acceptors have significantly boosted the efficiencies of organic solar cells (OSCs) in the past few years. State-of-the-art OSCs have achieved a certificated power conversion efficiency of 17.4%. READ MORE