Amphiphilic POSS-based ionic liquid electrolyte additives as a boost for dye-sensitized solar cell performance
| Autor: | Janez Volavšek, Elias Stathatos, Ivan Jerman, Nataša Čelan Korošin, Matic Šobak, Marija Čolović |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment 020209 energy Iodide Ionic bonding 02 engineering and technology Electrolyte 021001 nanoscience & nanotechnology law.invention chemistry.chemical_compound Dye-sensitized solar cell chemistry Chemical engineering law Ionic liquid Amphiphile Solar cell 0202 electrical engineering electronic engineering information engineering Butyronitrile General Materials Science 0210 nano-technology |
| Zdroj: | Solar Energy. 183:619-631 |
| ISSN: | 0038-092X |
| DOI: | 10.1016/j.solener.2019.03.070 |
| Popis: | A new approach to optimization of dye-sensitized solar cell, DSSC, performance, based on addition of POSS-based ionic liquid as an additive for I−/I3− electrolyte systems is proposed. Iodide PEO-POSS ILs are presented as conductive and thermally stable additives for DSSC electrolytes. Multifunctional M(EO)n Im+I− PIB7 T8 POSS ILs with polyethylene oxide, PEO, chains of different lengths, n = 1–7 for M(PEG350), were synthesized, characterized and used as electrolyte additives for DSSCs, based on MPIm+I− or M(EO)2PIm+I−/butyronitrile electrolyte systems. The amphiphilic PEO ionic liquid-functionalized POSS molecules are considered as a potential POSS-based anodic surface modifier. The beneficial orientation of the PEO-POSS IL additive with the longest PEO chain at the anodic surface enabled a 7% increase in DSSC conversion efficiency. The positive influence of the additives’ specific structure and anodic surface orientation on DSSC performance will be revealed in this research. |
| Databáze: | OpenAIRE |
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