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 similar to 265% and an ionic conductivity of 2.1x10(-3) S cm(-1), which is increased to 406.3%, and 3.2 x 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
2016. Vol. 11, no 7, 6064-6077 p.
Dye sensitized solar cells, quasi solid electrolyte, electrospinning, ionic conductivity
IdentifiersURN: urn:nbn:se:kth:diva-196104DOI: 10.20964/2016.07.19ISI: 000384905600060ScopusID: 2-s2.0-84978034007OAI: oai:DiVA.org:kth-196104DiVA: diva2:1046000
QC 201611112016-11-112016-11-112016-11-11Bibliographically approved