Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Effect of Cations on the open-Circuit Photovoltage and the Charge-Injection Efficiency of Dye-Sensitized Nanocrys-talline Rutile $TiO_2$ Films

  • Published : 20001000
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Abstract

Dye-sensitized nanocrystalline rutile $TiO_2$ solar cells were prepared, and the influence of Li+ and 1,2-dimethyl-3-hexyl imidazolium ions in the electrolyte on the photovoltaic properties was compared. The electrolyte con-taining Li+ ions produced a lower open-circuit photovoltage than the electrolyte with 1,2-dimethyl-3-hexyl im-idazolium ions, suggesting that the adsorption of Li+ ions to the rutile $TiO_2$ surface causes a shift in the band edges toward more positive potentials. At the same time, both the short-circuit photocurrent and the maximum value of the incident-photon-current conversion efficiency (IPCE) of the electrolyte containing Li+ ions were relatively higher. Data analysis suggests that presence of adsorbed Li+ ions improves via the phenomenon of band-edge movement the charge-injection efficiency by altering both the energy and number of excited state levels of the dye that participate in electron injection.

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References

  1. Nature v.353 O'Regan, B.;$Gr\"{a}tzel$, M.
  2. Chem. Rev. v.95 Hagfeldt, A.;$Gr\"{a}tzel$, M.
  3. J. Am. Ceram. Soc. v.80 Barbe, C. J.;Arendse, F.;Comte, P.;Jirousek, M.;Lenzmann, F.;Shklover, V.;$Gr\"{a}tzel$, M.
  4. J. Phys. Chem. v.98 Bedja, I.;Hotchandani, S.;Kamat, P. V.
  5. J. Phys. Chem. B v.101 Ferrere, S.;Zaban, A.;Gregg, B. A.
  6. Chem. Mater. v.6 Redmond, G.;Fitzmaurice, D.;$Gr\"{a}tzel$, M.
  7. J. Phys. Chem. B v.101 Rensmo, H.;Keis, K.;$Lindstr\"{o}m$, H.;$S\"{o}dergren, S.;Solbrand, A.;Hagfeldt, A.;Lindquist, S.-E.;Wang, L. N.;Muhammed, M.
  8. J. Electrochem. Soc. v.144 Rao, T. N.;Bahadur, L.
  9. Nanostructured Mater. v.12 Keis, K.;Vayssieres, L.;Lindquist, S.-E.;Hagfeldt, A.
  10. Chem. Mater. v.10 Sayama, K.;Sugihara, H.;Arakawa, H.
  11. Thin Solid Films v.351 Guo, P.;Aegerter, M. A.
  12. J. Phys. Chem. B v.103 Park, N.-G.;$Schlichth|"{o}rl, G.;van de Lagemaat, J.;Cheong, H. M.;Mascarenhas, A.;Frank, A. J.
  13. J. Phys. Chem. B v.104 Park, N.-G.;van de Lagemaat, J.;Frank, A. J.
  14. Solar Energy Mater. Solar Cells v.55 Liu, Y.;Hagfeldt, A.;Xiao, X.-R.;Lindquist, S.-E.
  15. Langmuir v.15 Kelly, C. A.;Farzad, F.;Thompson, D. W.;Stipkala, J. M.;Meyer, G. J.
  16. J. Phys. Chem. v.97 Redmond, G.;Fitzmaurice, D.
  17. J. Phys. Chem. v.98 Enright, B.;Redmond, G.;Fitzmaurice, D.
  18. J. Phys. Chem. v.97 Redmond, G.;Fitzmaurice, D.;$Gr\"{a}tzel$, M.
  19. J. Am. Chem. Soc. v.119 Lunell, S.;Stashans, A.;Olamae, L.;Lindstrom, H.;Hagfeldt, A.

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