Enhancing the efficiency of quasi-solid-state dye-sensitized solar cells by adding bis(trifluoromethane)sulfonimide lithium salt and camphorsulfonic acid to gel-based electrolytes
- Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien 97401, Taiwan (China)
- Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan (China)
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, OH 45433 (United States)
Highlights: • Bis(trifluoromethane)sulfonimide lithium salt and camphorsulfonic acid were added to the gel-based electrolytes for DSSCs. • Lithium salt and camphorsulfonic acid can enhance the conductivity of the electrolytes. • Adding lithium salt and camphorsulfonic acid to the gel-based electrolytes effectively enhanced the DSSC efficiency. • The DSSC devices with the gel-based electrolytes exhibited a longer stability. - Abstract: In this study, gel-based electrolytes were produced by mixing a liquid-based electrolyte with poly(methyl methacrylate) (PMMA), which served as a gelator to enhance the stability of the electrolytes and dye-sensitized solar cells (DSSCs). Furthermore, bis(trifluoromethane)sulfonimide lithium salt (LiTFSI) and camphorsulfonic acid (C{sub 10}H{sub 16}O{sub 4}S) were separately added to the gel-based electrolytes. The results indicate that adding LiTFSI and C{sub 10}H{sub 16}O{sub 4}S to the gel-based electrolytes effectively enhanced the device efficiency. In particular, the device with the 1:1 + 0.1 M LiTFSI gel-based electrolyte exhibited the optimal efficiency (7.33%), which was higher than that observed in the device with the liquid-based electrolyte. The results also proved that the DSSC devices with the gel-based electrolytes exhibited a longer stability. Therefore, using optimized gel-based electrolytes can enhance the power conversion efficiency and stability of DSSC devices.
- OSTI ID:
- 22805288
- Journal Information:
- Materials Research Bulletin, Vol. 107; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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