Photovoltaic cells with a conjugated polyelectrolyte
2000 (English)In: Synthetic metals, ISSN 0379-6779, Vol. 110, no 2, 133-140 p.Article in journal (Refereed) Published
We describe photovoltaic cells made from a novel conjugated polyelectrolyte, the lithium salt of poly(thiophene-3-acetic acid) (PTAA-Li). The aqueous solubility of this polyelectrolyte allows formation of blend electrodes with a dispersion of the metallic polymer Poly(Ethylene DiOxyThiophene) (PEDOT). The incident monochromatic photon to current conversion efficiency (IPCE) of the cells were improved up to 19% by blending PTAA-Li with PEDOT to modify the ITO electrode, in combination with the low bandgap polymer poly(3-(4-octylphenyl)thiophene) (POPT), and C60 as electron acceptor. We attribute the increase of efficiency to the improved contact area between the conjugated polyelectrolyte and PEDOT.
Place, publisher, year, edition, pages
2000. Vol. 110, no 2, 133-140 p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-47665DOI: 10.1016/S0379-6779(99)00284-2OAI: oai:DiVA.org:liu-47665DiVA: diva2:268561