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Träfflista för sökning "WFRF:(Smits R.) srt2:(2005-2009)"

Sökning: WFRF:(Smits R.) > (2005-2009)

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  • Charrier, D. S. H., et al. (författare)
  • Bimolecular recombination in ambipolar organic field effect transistors
  • 2009
  • Ingår i: Organic electronics. - : Elsevier. - 1566-1199 .- 1878-5530. ; 10:5, s. 994-997
  • Tidskriftsartikel (refereegranskat)abstract
    • In ambipolar organic field effect transistors (OFET) the shape of the channel potential is intimately related to the recombination zone width W, and hence to the electron-hole recombination strength. Experimentally, the recombination profile can be assessed by scanning Kelvin probe microscopy (SKPM). However, surface potentials as measured by SKPM are distorted due to spurious capacitive couplings. Here, we present a (de)convolution method with an experimentally calibrated transfer function to reconstruct the actual surface potential from a measured SKPM response and vice versa. Using this scheme, we find W = 0.5 mu m for a nickel dithiolene OFET, which translates into a recombination rate that is two orders of magnitude below the value expected for Langevin recombination. (C) 2009 Elsevier B.V. All rights reserved.
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  • Kemerink, M., et al. (författare)
  • On the width of the recombination zone in ambipolar organic field effect transistors
  • 2008
  • Ingår i: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 93:3
  • Tidskriftsartikel (refereegranskat)abstract
    • The performance of organic light emitting field effect transistors is strongly influenced by the width of the recombination zone. We present an analytical model for the recombination profile. By assuming Langevin recombination, the recombination zone width W is found to be given by W = root 4.34d delta, with d and delta the gate dielectric and accumulation layer thicknesses, respectively. The model compares favorably to both numerical calculations and measured surface potential profiles of an actual ambipolar device. (C) 2008 American Institute of Physics.
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  • Resultat 1-8 av 8

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