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Träfflista för sökning "WFRF:(Andersson LC) srt2:(2000-2004)"

Sökning: WFRF:(Andersson LC) > (2000-2004)

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  • Chen, LC, et al. (författare)
  • Excitation transfer in polymer photodiodes for enhanced quantum efficiency
  • 2000
  • Ingår i: Advanced Materials. - 0935-9648 .- 1521-4095. ; 12:15, s. 1110-
  • Tidskriftsartikel (refereegranskat)abstract
    • The realization of polymer solar cells is the driving force behind this research. In an idea inspired by photosynthesis, the authors have constructed efficient bilayer photodiodes by a well-chosen combination of conjugated polymers (see Figure) in the donor layer. Forster energy transfer within the donor layer allows the absorbed light to be channeled to the C-60 acceptor layer, improving the total photoconversion of the blend device.
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  • Chen, LC, et al. (författare)
  • Self organised polymer photodiodes for extended spectral coverage
  • 2000
  • Ingår i: Thin Solid Films. - 0040-6090 .- 1879-2731. ; 363:1-2, s. 286-289
  • Tidskriftsartikel (refereegranskat)abstract
    • We report the use of self organised blends of conjugated polymers for improving the spectral coverage of the solar spectrum, and in this way to enhance solar energy conversion efficiency in photodiodes and solar cells. (C) 2000 Elsevier Science S.A. All rights reserved.
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  • Godovsky, D, et al. (författare)
  • The use of combinatorial materials development for polymer solar cells
  • 2000
  • Ingår i: Advanced Materials for Optics and Electronics. - 1057-9257 .- 1099-0712. ; 10:2, s. 47-54
  • Tidskriftsartikel (refereegranskat)abstract
    • Vile use a combinatorial approach to develop molecular plastic solar cells based on soluble fullerene derivatives blended with conjugated polymers. A combinatorial way of sample preparation is well suited to deal with the multitude of possible combinations of the components of such blends. We use high mobility poly(thiophene) and poly(phenylenevinylene) derivatives to be combined with accepters, Gradients of methanofullerene/polymer concentration were formed by diusion of the low molecular weight component in the spin-cast polymer matrix, Likewise the gradients of zinc phthalocyanine/C-60 were prepared by co-evaporation of the two materials from two sources to make a linear array of photodiode devices, Photo- and electrophysical properties, such as absorption, luminescence, short circuit photocurrent and open circuit photovoltage, were measured using a specially designed installation with a resolution of 70-100 mu. Clear evidence was obtained that the photoconversion efficiency increased with the amount of methanofullerene up to very high levels, in the case of methanofullerene/polymer blends, verifying the important role of the acceptor in the photoconversion. By choosing the optimal ratio between C-60 and ZnPc in the evaporated layer it Is possible to obtain high photocurrent in the 600-700 nm range, due to the added contribution from photoinduced electron transfer between the two molecules, Copyright (C) 2000 John Wiley & Sons, Ltd.
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