Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations

Yu-dan Wang; Zhe Sun; Ya-jun Ren; Yan Zhang; Mao Liang; Song Xue

doi:10.1063/1674-0068/29/cjcp1604090

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Article Navigation > Chinese Journal of Chemical Physics > 2016 > 29(6): 735-741

Yu-dan Wang, Zhe Sun, Ya-jun Ren, Yan Zhang, Mao Liang, Song Xue. Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations[J]. Chinese Journal of Chemical Physics , 2016, 29(6): 735-741. doi: 10.1063/1674-0068/29/cjcp1604090

Citation:

Yu-dan Wang, Zhe Sun, Ya-jun Ren, Yan Zhang, Mao Liang, Song Xue. Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations[J]. Chinese Journal of Chemical Physics , 2016, 29(6): 735-741. doi: 10.1063/1674-0068/29/cjcp1604090

Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations

doi: 10.1063/1674-0068/29/cjcp1604090

1.
Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
2.
School of Electric Engineering, Tianjin University of Technology, Tianjin 300384, China

Received Date: 2016-04-28
Rev Recd Date: 2016-05-06

Abstract

The thickness of TiO₂ film is vital to realize the optimization on photovoltaic performance of dye sensitized solar cells (DSSCs). Herein, the process of charge separation in DSSCs was simulated by using a drift-diffusion model. This model allows multiple-trapping diffusion of photo-generated electrons, as well as the back reaction with the electron acceptors in electrolyte, to be mimicked in both steady and non-steady states. Numerical results on current-voltage characteristics allow power conversion efficiency to be maximized by varying the thickness of TiO₂ film. Charge collection efficiency is shown to decrease with film thickness, whereas the flux of electron injection benefits from the film thickening. The output of photocurrent is actually impacted by the two factors. Furthermore, recombination rate constant is found to affect the optimized film thickness remarkably. Thicker TiO₂ film is suitable to the DSSCs in which back reaction is suppressed sufficiently. On the contrary, the DSSCs with the redox couple showing fast electron interception require thinner film to alleviate the charge loss via recombination. At open circuit, electron density is found to decrease with film thickness, which engenders not only the reduction of photovoltage but also the increase of electron lifetime.
- Dye-sensitized solar cells,
- Titania,
- Film thickness,
- Simulation,

References

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通讯作者: 陈斌, bchen63@163.com

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Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations

1. Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China

2. School of Electric Engineering, Tianjin University of Technology, Tianjin 300384, China

Received Date: 2016-04-28

Rev Recd Date: 2016-05-06

Key words:

Abstract: The thickness of TiO₂ film is vital to realize the optimization on photovoltaic performance of dye sensitized solar cells (DSSCs). Herein, the process of charge separation in DSSCs was simulated by using a drift-diffusion model. This model allows multiple-trapping diffusion of photo-generated electrons, as well as the back reaction with the electron acceptors in electrolyte, to be mimicked in both steady and non-steady states. Numerical results on current-voltage characteristics allow power conversion efficiency to be maximized by varying the thickness of TiO₂ film. Charge collection efficiency is shown to decrease with film thickness, whereas the flux of electron injection benefits from the film thickening. The output of photocurrent is actually impacted by the two factors. Furthermore, recombination rate constant is found to affect the optimized film thickness remarkably. Thicker TiO₂ film is suitable to the DSSCs in which back reaction is suppressed sufficiently. On the contrary, the DSSCs with the redox couple showing fast electron interception require thinner film to alleviate the charge loss via recombination. At open circuit, electron density is found to decrease with film thickness, which engenders not only the reduction of photovoltage but also the increase of electron lifetime.

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Reference (36)

[1]	B. C. O'Regan and M. Grätzel, Nature 353, 737(1991).
[2]	M. A. Green, K. Emery, Y. Hishikawa, and W. Warta, Prog. Photovoltaics 19, 84(2011).
[3]	G. Boschloo and A. Hadfeldt, Acc. Chem. Res. 42, 1819(2009).
[4]	M. Grätzel, Acc. Chem. Res. 42, 1788(2009).
[5]	A. Hagfeldt, G. Boschloo, L. Sun, L. Kloo, and H. Pettersson, Chem. Rev. 110, 6595(2010).
[6]	Z. Sun, M. Liang, and J. Chen, Acc. Chem. Res. 48, 1541(2015).
[7]	T. Stergiopoulos and P. Falaras, Adv. Energy Mater. 2, 616(2012).
[8]	M. Wang, C. Grätzel, S. M. Zakeeruddin, and M. Grätzel, Energy Environ. Sci. 5, 9394(2012).
[9]	A. Yella, C. Mai, S. M. Zakeeruddin, S. Chang, C. H. Hsieh, C. Yeh, and M. Grätzel, Angew. Chem. Int. Ed. 53, 2973(2014).
[10]	M. K. Kashif, M. Nippe, N. W. Duffy, C. M. Forsyth, C. J. Chang, J. R. Long, L. Spiccia, and U. Bach, Angew. Chem. 125, 5637(2013).
[11]	Y. Wang, B. Chen, W. Wu, X. Li, W. Zhu, H. Tian, and Y. Xie, Angew. Chem. Int. Ed. 53, 10779(2014).
[12]	X. Sun, Y. Wang, X. Li, H. Ägren, W. Zhu, H. Tian, and Y. Xie, Chem. Commun. 50, 15609(2014).
[13]	Y. Xie, Y. Tang, W. Wu, Y. Wang, J. Liu, X. Li, H. Tian, and W. Zhu, J. Am. Chem. Soc. 137, 14055(2015).
[14]	Y. Chiba, A. Islam, Y. Watanabe, R. Komiya, N. Koide, L. Han, R. Komiya, N. Koide, and L. Y. Han, Jpn. J. Appl. Phys. 45, L638(2006).
[15]	H. Tian and L. Sun, J. Mater. Chem. 21, 10592(2011).
[16]	J. G. Rowley, B. H. Farnum, S. Ardo, and G. J. Meyer, J. Phys. Chem. Lett. 1, 3132(2010).
[17]	M. Griffith, K. Sunahara, P. Wagner, K. Wagner, G. Wallace, D. Officer, A. Furube, R. Katoh, S. Mori, and A. Mozer, Chem. Commun. 48, 4145(2012).
[18]	A. Yella, H. Lee, H. Tsao, C. Yi, A. Chandiran, M. Nazeeruddin, E. Diau, C. Yeh, S. Zakeeruddin, and M. Grätzel, Science 334, 629(2011).
[19]	M. Liang and J. Chen, Chem. Soc. Rev. 42, 3453(2013).
[20]	S. M. Feldt, E. A. Gibson, E. Gabrielsson, L. Sun, G. Boschloo, and A. Hagfeldt, J. Am. Chem. Soc. 132, 16714(2010).
[21]	J. H. Yum, E. Baranoff, F. Kessler, T. Moehl, S. Ahmad, T. Bessho, A. Marchioro, E. Ghadiri, J. E. Moser, C. Yi, M. K. Nazeeruddin, and M. Grätzel, Nat. Commun. 3, 631(2012).
[22]	T. W. Hamann, R. A. Jensen, A. B. F. Martinson, H. Van Ryswykac, and J. T. Hupp, Energy Environ. Sci. 1, 66(2008).
[23]	L. M. Peter, J. Phys. Chem. Lett. 2, 1861(2011).
[24]	P. R. F. Barnes, K. Miettunen, X. Li, A. Y. Anderson, T. Bessho, M. Gratzel, and B. C. O'Regan, Adv. Mater. 25, 1881(2013).
[25]	F. Fabregat-Santiago, G. Garcia-Belmonte, I. MoraSero, and J. Bisquert, Phys. Chem. Chem. Phys. 13, 9083(2011).
[26]	H. Wang, Z. Sun, Y. Zhang, Y. Zhang, M. Liang, D. Jia, and S. Xue, J. Phys. Chem. C 118, 60(2014).
[27]	K. Zhu, S. Jang, and A. J. Frank, J. Phys. Chem. Lett. 2, 1070(2011).
[28]	P. R. F. Barnes, A. Y. Anderson, J. R. Durrant, and B. C. O'Regan, Phys. Chem. Chem. Phys. 13, 5798(2011).
[29]	P. Salvador, M. Hidalgo, A. Zaban, and J. Bisquert, J. Phys. Chem. B 109, 15915(2005).
[30]	J. Bisquert and I. Mora-Seró, J. Phys. Chem. Lett. 1, 450, (2010).
[31]	J. Bisquert, F. Fabregat-Santiago, I. Mora-Seró, G. Garcia-Belmonte, and S. Giménez, J. Phys. Chem. C 113, 17278(2009).
[32]	R. Katoh, A. Furube, A. V. Barzykin, H. Arakawa, and M. Tachiya, Coord. Chem. Rev. 248, 1195(2004).
[33]	J. W. Ondersma and T. W. Hamann, J. Am. Chem. Soc. 133, 8264(2011).
[34]	J. Idígoras, L. Pellejà, E. Palomares, and J. A. Anta, J. Phys. Chem. C 118, 3878(2014).
[35]	T. Daeneke, T. Kwon, A. B. Holmes, N. W. Duffy, U. Bach, and L. Spiccia, Nat. Chem. 3, 213(2011).
[36]	T. Daeneke, A. J. Mozer, Y. Uemura, S. Makuta, M. Fekete, Y. Tachibana, N. Koumura, U. Bach, and L. Spiccia, J. Am. Chem. Soc. 134, 16925(2012).

Correlating Photovoltaic Performance of Dye-Sensitized Solar Cell to the Film Thickness of Titania via Numerical Drift-Diffusion Simulations

doi: 10.1063/1674-0068/29/cjcp1604090

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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