Quasi-solid-state electrolyte for dye sensitized solar cells based on nanofiber PMA-PVDF and PMA-PVDF/PEG membranes
2016 (English)In: International Journal of Electrochemical Science, ISSN 1452-3981, E-ISSN 1452-3981, Vol. 11, no 7, 6064-6077 p.Article in journal (Refereed) Published
Novel electrospun membranes quasi-solid electrolytes based on blends of polymethylacrylate (PMA) - polyvinylidene fluoride (PVDF), and PMA-PVDF/PEG (polyethylene glycol) are prepared by electrospinning technique and applied as quasi-solid state electrolytes in dye sensitized solar cells (DSSCs). The membranes are characterized by Fourier transform infrared (FT-IR) spectrophotometer, differential scanning calorimeter (DSC), Scanning electron microscopy (SEM), and Electrochemical impedance spectroscopy. The crystallinity obtained from the DSC data increased with the increase of PVDF wt% in PMA-PVDF blend and then decreased for the PMA-PVDF/PEG membranes. The fully interconnected porous structure of the host polymer membranes of PMA-PVDF (4:6 wt%) exhibited a high electrolyte uptake reached to ~ 265% and an ionic conductivity of 2.1×10-3 S cm-1, which is increased to 406.3%, and 3.2 × 10-3 S cm-1, respectively for PMA-PVDF/PEG (4:6:4 wt%) membrane. DSSC is assembled by PMA-PVDF(4:6 wt%) and attained an overall energy conversion efficiency of 6.6% at light intensity of 100 mW cm-2. The presence of 4 w% PEG in the electrolyte membrane increased the energy conversion efficiency to 7 % giving a promise candidate for scaling up this type of DSSCs.
Place, publisher, year, edition, pages
Electrochemical Science Group , 2016. Vol. 11, no 7, 6064-6077 p.
Dye sensitized solar cells, Electrospinning, Ionic conductivity, Quasi solid electrolyte
Chemical Engineering Chemical Sciences
IdentifiersURN: urn:nbn:se:kth:diva-195463DOI: 10.20964/2016.07.19ScopusID: 2-s2.0-84978034007OAI: oai:DiVA.org:kth-195463DiVA: diva2:1047784
QC 201611182016-11-182016-11-032016-11-18Bibliographically approved