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Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility

J.L. Storck, M. Dotter, B. Brockhagen, T. Grothe, Crystals 10 (2020).

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Artikel | Veröffentlicht | Englisch
Abstract
Alongside efficiency, long-term stability of dye-sensitized solar cells (DSSCs) is a key factor regarding their commercialization. One suitable and cost-effective method to increase the long-term stability is to prevent leakage and evaporation of the electrolyte by gelling it with polymers such as poly(ethylene oxide) (PEO) and gaining a gel polymer electrolyte (GPE). In this study, a GPE based on PEO and glycerol is investigated for the first time as electrolyte for environmentally friendly DSSCs with natural dyes. To evaluate the novel glycerol/PEO GPE, the ionic conductivity and resulting efficiency progressions of DSSCs were measured for 75 days. Different molecular weights (MWs) of PEO and blending with poly(vinylidene fluoride) (PVDF) had negligible impact on efficiencies. 17 wt% PEO was found to be more suitable than lower concentrations and resulted in a relatively high efficiency over 75 days. A glycerol electrolyte without PEO had higher ionic conductivity and achieved higher efficiencies as well but leaked from the unsealed DSSCs. In addition, the reproducibility was examined especially, which appeared to be reduced by considerable differences between identical DSSCs and between measurements of the same DSSC at different times. This emphasizes the relevance of studying multiple DSSC per sample to ensure reliable results.
Erscheinungsjahr
Zeitschriftentitel
Crystals
Band
10
Zeitschriftennummer
12
Artikelnummer
1158
eISSN
FH-PUB-ID

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Storck, Jan Lukas ; Dotter, Marius ; Brockhagen, Bennet ; Grothe, Timo: Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. In: Crystals Bd. 10, MDPI AG (2020), Nr. 12
Storck JL, Dotter M, Brockhagen B, Grothe T. Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. Crystals. 2020;10(12). doi:10.3390/cryst10121158
Storck, J. L., Dotter, M., Brockhagen, B., & Grothe, T. (2020). Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility. Crystals, 10(12). https://doi.org/10.3390/cryst10121158
@article{Storck_Dotter_Brockhagen_Grothe_2020, title={Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility}, volume={10}, DOI={10.3390/cryst10121158}, number={121158}, journal={Crystals}, publisher={MDPI AG}, author={Storck, Jan Lukas and Dotter, Marius and Brockhagen, Bennet and Grothe, Timo}, year={2020} }
Storck, Jan Lukas, Marius Dotter, Bennet Brockhagen, and Timo Grothe. “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility.” Crystals 10, no. 12 (2020). https://doi.org/10.3390/cryst10121158.
J. L. Storck, M. Dotter, B. Brockhagen, and T. Grothe, “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility,” Crystals, vol. 10, no. 12, 2020.
Storck, Jan Lukas, et al. “Evaluation of Novel Glycerol/PEO Gel Polymer Electrolytes for Non-Toxic Dye-Sensitized Solar Cells with Natural Dyes Regarding Long-Term Stability and Reproducibility.” Crystals, vol. 10, no. 12, 1158, MDPI AG, 2020, doi:10.3390/cryst10121158.

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