Sökning: "fullerene polymers"

Visar resultat 21 - 25 av 27 avhandlingar innehållade orden fullerene polymers.

  1. 21. Polymer/polymer blends in organic photovoltaic and photodiode devices

    Författare :Yuxin Xia; Olle Inganäs; Ergang Wang; Hin-Lap Yip; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Organic photovoltaics devices (OPV) have attracted attentions of scientist for their potential as inexpensive, lightweight, flexible and suitable for roll-to-roll production. In recent years, considerable attention has been focused on new acceptor materials, either polymeric or small molecules, to replace the once dominating fullerene derivatives. LÄS MER

  3. 22. Molecules and Light : A Journey into the World of Theoretical Spectroscopy

    Författare :Iulia Emilia Brumboiu; Barbara Brena; Heather Kulik; Uppsala universitet; []
    Nyckelord :Theoretical spectroscopy; XPS; NEXAFS; PCBM; Metal phthalocyanine; Organic solar cells; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik; Physics with spec. in Atomic; Molecular and Condensed Matter Physics;

    Sammanfattning : Two of the main technological challenges of the century are the production of clean energy, on the one hand, and the development of new materials for electronic and spintronic applications that could increase the speed and the storage capacity of regular electronic devices, on the other hand. Organic materials, including fullerenes, organic polymers and organic molecules with metal centres are promising candidates for low-cost, flexible and clean technologies that can address these challenges. LÄS MER

  4. 23. Electron tomography and optical modelling for organic solar cells

    Författare :Viktor Andersson; Olle Inganäs; Joachim Loos; Linköpings universitet; []
    Nyckelord :Organic solar cells; Electron tomography; Optical modelling;

    Sammanfattning : Organic solar cells using carbon based materials have the potential to deliver cheap solar electricity. The aim is to be able to produce solar cells with common printing techniques on flexible substrates, and as organic materials can be made soluble in various solvents, they are well adapted to such techniques. LÄS MER

  5. 24. Light Induced Charge Generation, Recombination, and Transport in Organic Solar Cells

    Författare :Yingyot Infahsaeng; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Light-to-electricity conversion processes in organic and dye sensitized solar cells have attracted much scientific effort, aiming to understand the fundamental nature of these processes and to improve solar cell efficiency. Power conversion efficiency of such solar cells has progressed steadily in the last few decades, suggesting applicability for commercial products in the nearest future. LÄS MER

  7. 25. Light Trapping and Alternative Electrodes for Organic Photovoltaic Devices

    Författare :Kristofer Tvingstedt; Olle Inganäs; Peter Peumans; Linköpings universitet; []
    Nyckelord :Light trapping; Organic solar cells; Tandem cells; Polymer solar cells; Plastsolceller; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Organic materials, such as conjugated polymers, have emerged as a promising alternative for the production of inexpensive and flexible photovoltaic cells. As conjugated polymers are soluble, liquid based printing techniques enable production on large scale to a price much lower than that for inorganic based solar cells. LÄS MER