Macromolecular Research

, Volume 21, Issue 7, pp 732–737 | Cite as

Novel cyclotetrasiloxane tetraimidazolium salts as high performance quasi-solid state electrolyte for dye-sensitized solar cells

  • Soon Ho Lee
  • Dong Wan Seo
  • Young Don Lim
  • Young Tae Jeon
  • Hyun Ho Joo
  • Sang Young Lee
  • Jin Seong Lim
  • Whan Gi KimEmail author


A new type of quasi-state ionics based on cyclosiloxane imidazolium iodides was synthesized and used as electrolytes in dye-sensitized solar cells (DSSCs). The cyclosiloxane electrolyte formed a distinctive cavity in the center of the molecule, and the cyclic Si-O linkages were surrounded with bulky tetraimidazolium salts on the outside. The resulting electrolytes were characterized by 1H nuclear magnetic resonance (NMR) spectroscopy and thermogravimetric analysis (TGA). The electrolytes exhibited dark brown quasi-solid state, high viscosity, and excellent long term stability. The cell efficiency tended to depend on the chain length of the electrolyte, and was slightly higher in the propylimidazolium electrolyte (η max =8.2%) than in the methylimidazolium one. The superior long-term stability of the fabricated, cyclosiloxane electrolyte-based DSSCs demonstrated that they hold great promise in overcoming the current issues affecting on cell performance.


electrolyte dye-sensitized solar cell (DSSC) siloxane imidazolium iodide 


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  1. (1).
    M. Grätzel, J. Photochem. Photobiol. C, 4, 145 (2003).CrossRefGoogle Scholar
  2. (2).
    A. Hagfeldt and M. Grätzel, Acc. Chem. Res., 33, 269 (2000).CrossRefGoogle Scholar
  3. (3).
    J. Wu, Z. Lan, J. Lin, M. Huang, S. Hao, T. Sato, and S. Yin, Adv. Mater., 19, 4006 (2006).CrossRefGoogle Scholar
  4. (4).
    E. Stathatos, P. Lianos, U. L. Stanger, and B. Orel, Adv. Mater., 14, 354 (2002).CrossRefGoogle Scholar
  5. (5).
    D. W. Seo, S. Sarkerb, N. C. Debnathb, S. W. Choi, A. J. A. Saleh, J. J. Lee, and W. G. Kim, Electrochim. Acta, 55, 1483 (2010).CrossRefGoogle Scholar
  6. (6).
    D. F. Watson and J. Gerald, Coord. Chem. Rev., 248, 1391 (2004).CrossRefGoogle Scholar
  7. (7).
    W. Kubo, T. Kitamura, K. Hanabusa, Y. Wada, and S. Yanagida, Chem. Commun., 4, 374 (2002).CrossRefGoogle Scholar
  8. (8).
    H. Tokuda, K. Hayamizu, K. Ishii, Md. A. B. H. Susan, and M. Watanabe, J. Phys. Chem. B, 109, 6103 (2005).CrossRefGoogle Scholar
  9. (9).
    J. P. Lee, B. Yoo, T. Suresh, S. M. Kang, R. Vital, and K. J. Kim, Electrochim. Acta, 54, 4365 (2009).CrossRefGoogle Scholar
  10. (10).
    L. Lestel, H. Cheradame, and S. Boileau, Polymer, 31, 1154 (1990).CrossRefGoogle Scholar
  11. (11).
    J. V. Crivello, B. Yang, and W. G. Kim, J. Polym. Sci. Part A: Polym. Chem., 33, 2415 (1995).CrossRefGoogle Scholar
  12. (12).
    S. H. Lee, Novel Siloxane Bisiidazolium Diiodide as High Performance Electrolytes for DSSC, MS Thesis, Konkuk University, 2011.Google Scholar
  13. (13).
    A. Hauch and A. Georg, Electrochim. Acta, 46, 3457 (2001).CrossRefGoogle Scholar
  14. (14).
    S. S. Soni, N. V. Sastry, K. A. Vinod, and S. G. Prem, J. Phys. Chem. B, 106, 2606 (2002).CrossRefGoogle Scholar
  15. (15).
    M. J. Kim, M. J. Kim, C. R. Lee, W. S. Woo, J. H. Im, T. I. Tae, and N. G. Park, J. Phys. Chem. C, 114, 19849 (2010).CrossRefGoogle Scholar
  16. (16).
    C. Zafer, K. Ocakoglu, C. Ozsoy, and S. Idi, Electrochim. Acta, 54, 5709 (2009).CrossRefGoogle Scholar
  17. (17).
    A. Kokil, A. Renna, J. Kumar, and S. Granados-Focil, J. Macromol. Sci. A: Pure Appl. Chem., 48, 1022 (2011).Google Scholar
  18. (18).
    S. Lu, R. Koeppe, S. Gunes, and N. S. Sariciftci, Sol. Energy Mater. Sol. Cells, 91, 1081 (2007).CrossRefGoogle Scholar
  19. (19).
    M. Toivola, J. Halme, L. Peltokorpi, and P. Lund, Int. J. Photoenergy, 2009, 1 (2009).CrossRefGoogle Scholar
  20. (20).
    A. Hinsch, J. M. Kroon, R. Kern, I. Uhlendorf, J. Holzbock, A. Meyer, and J. Ferber, Prog. Photovolt: Res. Appl., 9, 425 (2011).CrossRefGoogle Scholar
  21. (21).
    K. Fredin, K. F. Anderson, N. W. Duffy, G. J. Wilson, C. J. Fell, D. P. Hagberg, L. Sun, U. Bach, and S. E. Lindquist, J. Phys. Chem. C, 113, 18902 (2009).CrossRefGoogle Scholar

Copyright information

© The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht 2013

Authors and Affiliations

  • Soon Ho Lee
    • 1
  • Dong Wan Seo
    • 1
  • Young Don Lim
    • 1
  • Young Tae Jeon
    • 1
  • Hyun Ho Joo
    • 1
  • Sang Young Lee
    • 1
  • Jin Seong Lim
    • 1
  • Whan Gi Kim
    • 1
    Email author
  1. 1.Department of Applied ChemistryKonkuk UniversityChungbukKorea

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