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Dye-sensitized solar cells based on electrospun poly(vinylidenefluoride-co-hexafluoropropylene) nanofibers |
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| Authors: | Ju-Young Park Jae-Wook Lee Kyung Hee Park Tae-Young Kim Soon-Ho Yim Xing Guan Zhao Hal-Bon Gu En Mei Jin |
| Affiliation: | 1. Southwestern Research Institute of Green Energy Technology, Mokpo, 530-400, Korea 2. Department of Chemical and Biochemical Engineering, Chosun University, Kwangju, 590-170, Korea 3. The Research Institute for Catalysis, Chonnam National University, Kwangju, 500-757, Korea 4. Department of Environmental Engineering, Chonnam National University, Kwangju, 500-757, Korea 5. Gist Technology Institute, Gwangju Institute of Science and Technology, Kwangju, 500-712, Korea 6. Department of Electrical Engineering, Chonnam National University, Kwangju, 500-757, Korea |
| Abstract: | Poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) nanofibers were prepared by the electrospinning method and used as polymer electrolytes in dye-sensitized solar cells (DSSCs). The electrolyte uptake and ionic conductivity of electrospun PVDF-HFP nanofibers with different diameters changed significantly, regardless of the nanofiber thickness. The PVDF-HFP nanofibers prepared from a 15 wt% spinning solution showed high ionic conductivity (1.295 S/cm) and electrolyte uptake (947 %). DSSCs based on the 15 wt% PVDF-HFP nanofiber electrolyte showed an electron transit time of 6.34 × 10?3 s, electronic recombination time of 5.88 × 10?2 s, and conversion efficiency of 3.13 %. Thus, we concluded that the electrospun PVDF-HFP nanofibers can be used as polymer electrolytes in flexible DSSCs as well. |
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