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Träfflista för sökning "WFRF:(Inganäs Olle) ;lar1:(umu)"

Sökning: WFRF:(Inganäs Olle) > Umeå universitet

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1.
  • Lundberg, Bo, et al. (författare)
  • Pressure-dependent electrical conductivity of polypyrrole
  • 1985
  • Ingår i: Molecular Crystals and Liquid Crystals vol. 118. - : Informa UK Limited. - 0026-8941. ; , s. 155-158
  • Konferensbidrag (refereegranskat)abstract
    • The results of pressure dependent electrical conductivity measurements in polypyrrole are consistent with a simple extension of the variable-range-hopping model of electronic transport in disordered media.
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2.
  • Sandström, Andreas, et al. (författare)
  • Separating Ion and Electron Transport: The Bilayer Light-Emitting Electrochemical Cell
  • 2010
  • Ingår i: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - : ACS American Chemical Society. - 0002-7863 .- 1520-5126. ; 132:19, s. 6646-
  • Tidskriftsartikel (refereegranskat)abstract
    • The current generation of polymer light-emitting electrochemical cells (LECs) suffers from insufficient stability during operation. One identified culprit is the active material, which comprises an intimate blend between an ion-conducting electrolyte and an electron-transporting conjugated polymer, as it tends to undergo phase separation during long-term operation and the intimate contact between the ion- and electron-transporting components provokes side reactions. To address these stability issues, we present here a bilayer LEC structure in which the electrolyte is spatially separated from the conjugated polymer. We demonstrate that employing this novel device structure, with its clearly separated ion- and electron-transport paths, leads to distinctly improved LEC performance in the form of decreased turn-on time and improved light emission. We also point out that it will allow for the utilization of combinations of active materials having mutually incompatible solubilities.
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  • Resultat 1-2 av 2

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