Royal Society of Chemistry;Cambridge: Royal Society of Chemistry (RSC)
摘要:
摘要： Poly(acrylonitrile- co -vinyl acetate) (PAN-VA) is utilized as a gelation agent to prepare gel-state electrolytes for dye-sensitized solar cell (DSSC) applications. Based on the synergistic effect of PAN-VA and TiO 2 fillers in the electrolyte, the gel-state DSSC can achieve a conversion efficiency higher than that of a liquid counterpart. The high performance of the gel-electrolyte is attributed to the in situ gelation property of the gel-electrolyte, the contribution of the PAN-VA to the charge transfer, as well as the enhancement effect of TiO 2 fillers on the charge transfer at the Pt-electrolyte interface. The experimental results show that the efficiencies of the gel-state cells have little dependence on the conductivity of the electrolytes with various contents of PAN-VA, but are closely related to the penetration situation of the electrolyte in the TiO 2 film. For PAN-VA concentrations ≤15 wt%, the electrolyte can be easily injected at room temperature based on its in situ gelation property. For higher PAN-VA concentrations, good penetration of the high viscous electrolyte can be achieved by elevating the operation temperature. By utilizing a heteroleptic ruthenium dye (coded CYC-B11), gel-state DSSCs with an efficiency of above 10% are obtained. Acceleration tests show that the cell is stable under one-sun illumination at 60 °C. Poly(acrylonitrile- co -vinyl acetate) (PAN-VA) is utilized as a gelation agent to prepare gel-state electrolytes for dye-sensitized solar cell (DSSC) applications. 其他題名： Phys Chem Chem Phys 出版者： Cambridge: Royal Society of Chemistry (RSC) 出版日期： 2013-03-14 出處： Physical Chemistry Chemical Physics, 2013-03, Vol.15 (10), p.3640--3645 資源來源： Royal Society of Chemistry 版權： 2014 INIST-CNRS 識別號： ISSN: 1463-9076 識別號： ISSN: 1463-9084 識別號： EISSN: 1463-9084 識別號： DOI: 10.1039/c3cp50170a 識別號： PMID: 23385395
