Improvement of Photovoltage in Dye-Sensitized Solar Cells with Azobenzene and Azulene Sensitizing Dyes by Applying Br3-/Br- Redox Mediator

Kenji Kakiage; Emi Fujimura; Yoshinori Nakada; Takashi Ogino; Tôru Kyômen; Minoru Hanaya

doi:10.4028/www.scientific.net/KEM.596.35

Paper Titles

TEM Observation and Ionic Conductivity Study of Li₂SiO₃ Thin-Film on Sapphire Substrate
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Electrical Properties of SnS Films Deposited by Thermal Evaporation of Sulfurized Sn Powder
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Growth of La_{1-_x}Ba_xCoO₃ Single Crystals and their Structural and Magnetic Properties
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Composition Dependence of the Glass Network Structure in Li⁺-ion Conducting Glasses of (LiCl)_x(LiPO₃)_{1-_x} Studied by ³¹P MAS NMR
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Improvement of Photovoltage in Dye-Sensitized Solar Cells with Azobenzene and Azulene Sensitizing Dyes by Applying Br₃^-/Br^- Redox Mediator
p.35

Nitrification of Nb-Modified Titanias Prepared by the Solvothermal Method and their Photocatalytic Activities under Visible-Light Irradiation
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In Situ SAXS Analysis during Uniaxial Drawing of Polyethylene-block-Polystyrene Copolymer Film
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Tungsten Carbide Nanofiber Prepared by Electrospinning for Methanol Oxidation Reaction
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Sintering of Copper Sub-Micron Particles by Heat and Atmospheric Pressure Non-Equilibrium Plasma Treatments
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 596Improvement of Photovoltage in Dye-Sensitized...

Improvement of Photovoltage in Dye-Sensitized Solar Cells with Azobenzene and Azulene Sensitizing Dyes by Applying Br₃^-/Br^- Redox Mediator

Abstract:

In dye-sensitized solar cells (DSSCs) fabricated with azobenzene and azulene derivatives as the photosensitizing dyes, the replacement of the conventional I₃^-/I^- redox mediator with Br₃^-/Br^- redox mediator possessing more positive redox potential has been examined to improve open-circuit photovoltages (V_oc) of the cells. The cells with the Br₃^-/Br^- redox mediator exhibited high V_oc of ~0.8 V, resulting in higher light-to-electric energy conversion efficiencies (η) than the cells with the I₃^-/I^- redox mediator by a factor of 1.7 under the simulated sunlight irradiation (AM-1.5G, 100 mW cm^-2). The results indicate a high potential of the Br₃^-/Br^- redox mediator in DSSCs.

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Periodical:

Key Engineering Materials (Volume 596)

Pages:

35-39

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.596.35

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Online since:

December 2013

Authors:

Kenji Kakiage, Emi Fujimura, Yoshinori Nakada, Takashi Ogino, Tôru Kyômen, Minoru Hanaya

Keywords:

Azobenzene, Azulene, Br₃^-/Br^- Redox Mediator, Dye-Sensitized Solar Cell, Photovoltage, Sensitizing Dye

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References

[1] (a) B. O'Regan and M. Grätzel: Nature Vol. 353 (1991).

Google Scholar

[2] (a) K. Kakiage, Y. Nakada, T. Kogure, M. Yamamura, T. Kyomen, M. Unno and M. Hanaya: Silicon Chem. Vol. 3 (2008).

DOI: 10.1007/s11201-008-9032-8

Google Scholar

[3] (a) K. Kakiage, E. Fujimura, H. Mine, T. Izumizawa, T. Katoh, K. Yoshimura, S. Kyushin, T. Kyomen and M. Hanaya: Chem. Lett. Vol. 39 (2010).

DOI: 10.1246/cl.2010.1063

Google Scholar

[4] A. Yella, H. -W. Lee, H.N. Tsao, C. Yi, A.K. Chandiran, M.K. Nazeeruddin, E.W. -G. Diau, C. -Y. Yeh, S.M. Zakeeruddin and M. Grätzel: Science Vol. 334 (2011), p.629.

DOI: 10.1126/science.1209688

Google Scholar

[5] (a) G. Oskam, B.V. Bergeron, G.J. Meyer and P.C. Searson: J. Phys. Chem. B Vol. 105 (2001), p.6867; (b) H. Tian and L. Sun: J. Mater. Chem. Vol. 21 (2011), p.10592; (c) T.W. Hamann and J.W. Ondersma: Energy Environ. Sci. Vol. 4 (2011), p.370.

Google Scholar

[6] Z. Ning, Y. Fu and H. Tian: Energy Environ. Sci. Vol. 3 (2010), p.1170.

Google Scholar

[7] (a) Z. -S. Wang, K. Sayama and H. Sugihara: J. Phys. Chem. B Vol. 109 (2005).

Google Scholar

[8] S. Ito, T.N. Murakami, P. Comte, P. Liska, C. Grätzel, M.K. Nazeeruddin and M. Grätzel: Thin Solid Films Vol. 516 (2008), p.4613.

DOI: 10.1016/j.tsf.2007.05.090

Google Scholar

[9] R.S.H. Liu and A.E. Asato: J. Photochem. Photobiol. C: Photochem. Rev. Vol. 4 (2003), p.179.

Google Scholar

[10] Details will be reported in other papers.

Google Scholar

[11] A. Islam, S.P. Singh and L. Han: Int. J. Photoenergy Vol. 2011 (2011), p.204639.

Google Scholar

[12] S.R. Raga, E.M. Barea and F. Fabregat-Santiago: J. Phys. Chem. Lett. Vol. 3 (2012), p.1629.

Google Scholar

[13] T. Kanzaki, S. Nakade, Y. Wada and S. Yanagida: Photochem. Photobiol. Sci. Vol. 5 (2006), p.389.

Google Scholar

[14] C. Zhang, Y. Huang, Z. Huo, S. Chen and S. Dai: J. Phys. Chem. C Vol. 113 (2009), p.21779.

Google Scholar

[15] M. Wang, N. Chamberland, L. Breau, J. -E. Moser, R. Humphry-Baker, B. Marsan, S.M. Zakeeruddin and M. Grätzel: Nat. Chem. Vol. 2 (2010), p.385.

DOI: 10.1038/nchem.610

Google Scholar