摘要： DSC based on polymer counter electrode made from HFIP solution achieves the efficiency up to 9.0%. [Display omitted] •Stable PANI/HFIP and PEDOT/HFIP solution are prepared by dissolving doped polymer in hexafluoro-isopropanol (HFIP).•PANI or PEDOT film deposited on FTO as a counter electrode was fabricated simply by spin-coating or casting method.•DSC device based on PEDOT/FTO counter electrode, CYC-B11 dye, and I-/I3- electrolyte has the efficiency of 9.0%. Highly concentrated, good dispersed and stable conducting polyaniline and poly(3,4-ethylenedioxythiophene)/hexafluoro-isopropanol (HFIP) colloid solutions (PANI/HFIP and PEDOT)/HFIP) are prepared simply by dissolving the doped polymer powders in HFIP. The hydrogen bonding between the doped polymer and fluorinated solvent is not only a driving force for forming concentrated and stable solution but also disintegrates polymer chains in the colloid particles to form more expanded coil-like conformation. PANI-SO4-F (H2SO4 doped PANI) and PEDOT-F (doped PEDOT) films casted from the corresponding HFIP solutions have not only high electrical conductivity and electrocatalytic activity but also high surface area and good adhesion on the substrate. Dye-sensitized solar cells (DSCs) using CYC-B11 sensitizer, I-/I3- redox pair electrolyte and PANI-SO4-F or PEDOT-F/FTO counter electrode achieve the conversion efficiency (η) of 8.8–9.0% which is as good as those for DSCs based on Pt/FTO counter electrode fabricated with the same procedure using the same sensitizer and electrolyte. The excellent photoelectric properties, easy preparation and low cost make conjugated polymer to be a credible material for replacing Pt in DSCs. 出版者： Amsterdam: Elsevier B.V 出版日期： 2013-09-01 出處： Organic electronics, 2013-09, Vol.14 (9), p.2369-2378 版權： 2013 Elsevier B.V. 版權： 2014 INIST-CNRS 識別號： ISSN: 1566-1199 識別號： EISSN: 1878-5530 識別號： DOI: 10.1016/j.orgel.2013.05.039
