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Sökning: WAKA:ref > Inganäs Olle > Andersson Mats R > Crispin Xavier

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  • Chen, Miaoxiang, 1962-, et al. (författare)
  • High carrier mobility in low band gap polymer-based field-effect transistors
  • 2005
  • Ingår i: Applied Physics Letters. - 0003-6951. ; 87:25, s. 252105-1-252105-3
  • Tidskriftsartikel (refereegranskat)abstract
    • A conjugated polymer with a low band gap of 1.21 eV, i.e., absorbing infrared light, is demonstrated as active material in field-effect transistors (FETs). The material consists of alternating fluorene units and low band gap segments with electron donor-acceptor-donor units composed of two electron-donating thiophene rings attached on both sides of a thiadiazolo-quinoxaline electron-acceptor group. The polymer is solution-processable and air-stable; the resulting FETs exhibit typical p-channel characteristics and field-effect mobility of 0.03 cm2 V−1 s−1.
  • Gadisa, Abay, et al. (författare)
  • Transparent polymer cathode for organic photovoltaic devices
  • 2006
  • Ingår i: Synthetic metals. - 0379-6779. ; 156:16-17, s. 1102-1107
  • Tidskriftsartikel (refereegranskat)abstract
    • We demonstrate a prototype solar cell with a transparent polymer cathode, and indium-tin-oxide (ITO)/poly (3, 4-ethylene dioxythiophene)-poly (styrene sulphonate) (PEDOT:PSS) anode. As an active layer, thin film of a bulk heterojunction of polyfluorene copolymer poly[2,7-(9,9-dioctyl-fluorene)-alt-5,5-(4′,7′-di-2thienyl-2′,1′3′-benzothiadiazole)] (APFO-3) and an electron acceptor molecule [6] and [6]-phenyl-C61-butyric acid methyl ester (PCBM) (1:4 wt.) was sandwiched between the two transparent polymer electrodes. The cathode is another form of PEDOT formed by vapor phase polymerised PEDOT (VPP PEDOT) of conductivity 102–103 S/cm. The cathode is supported on an elastomeric substrate, and forms a conformal contact to the APFO-3/PCBM blend. Transparent solar cells are useful for building multilayer and tandem solar cells.
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