Design and Fabrication of Long-Term Stable Dye-Sensitized Solar Cells: Effect of Water Contents in Electrolytes on the Performance
- 37 Downloads
The effects of water-containing I−/I3− liquid electrolytes on the photovoltaic performance and long-term stability of ruthenium based complex Z907 dye was examined in dye-sensitized solar cells (DSSCs). Despite of high water content up to 60 vol% in organic solvent-based liquid electrolyte, the photovoltaic properties and long-term stability measured under the standard global (G) air-mass (AM) 1.5 solar irradiation were not significantly affected. The underlying correlation between the effects of water and the photovoltaic performances were identified by UV–visible spectroscopy and electrochemical impedance spectroscopy. We investigated the long-term stability of performance for DSSCs in conjunction with I−/I3− redox electrolytes in different water compositions. The findings revealed that the competitive photovoltaic performance and long-term stability of water-containing DSSCs mainly depends on the hydrophobicity of dye as well as the transport phenomena of I3− throughout the electrolytes. The water-based DSSCs proposed herein are free from water permeation issues and these results will provide great insight into the development of less expensive and more environmental friendly DSSCs.
KeywordsDye-sensitized solar cells Water-containing liquid electrolytes Dye Photovoltaic performance Long-term stability
Authors acknowledge the funding support by development program “Development of high drapability of textile type dye-sensitized solar cell materials and outdoor applications. (project NO. 10052064)” funded by MOTIE and the Technology Development Program to Solve Climate Changes (2015M1A2A2056824) funded by the National Research Foundation under the Ministry of Science an ICT, Korea.
- 2.Choi, J.-H., Moon, Y., Lee, S.-H., In, J.-H., & Jeong, S. (2016). Wavelength dependence of the ablation characteristics of Cu (In, Ga) Se2 solar cell films and its effects on laser induced breakdown spectroscopy analysis. International Journal of Precision Engineering and Manufacturing-Green Technology, 3(2), 167–171.CrossRefGoogle Scholar
- 7.Gong, H. H., Park, S. H., Lee, S.-S., & Hong, S. C. (2014). Facile and scalable fabrication of transparent and highperformance Pt/reduced graphene oxide hybrid counter electrode for dye-sensitized solar cells. International Journal of Precision Engineering and Manufacturing, 15(6), 1193–1199.CrossRefGoogle Scholar
- 9.Komiya, R., Fukui, A., Murofushi, N., Koide, N., Yamanaka, R., & Katayama, H. (2011). Improvement of the conversion efficiency of a monolithic type dye-sensitized solar cell module. In Technical Digest of the 21st International Photovoltaic Science and Engineering Conference, 2C-5O-08, Fukuoka, Japan.Google Scholar
- 23.Yang, Y., Zhang, J., Zhou, C. H., Wu, S. J., Xu, S., Liu, W., et al. (2008). Effect of lithium iodide addition on poly (ethylene oxide)−poly (vinylidene fluoride) polymer-blend electrolyte for dye-sensitized nanocrystalline solar cell. Journal of Physical Chemistry B, 112(21), 6594–6602.CrossRefGoogle Scholar
- 25.Park, J., Choi, I., Lee, M.-J., Kim, M.-H., Lim, T., Park, K.-H., et al. (2014). Effect of fluoroethylene carbonate on electrochemical battery performance and the surface chemistry of amorphous MoO2 lithium-ion secondary battery negative electrodes. Electrochimica Acta, 132, 338–346.CrossRefGoogle Scholar