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Issue 94, 2015
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Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates: combination of chemical and physical sintering

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Abstract

Preparation of well-interconnected TiO2 electrodes at low temperature is critical for the fabrication of highly efficient dye-sensitized solar cells (DSCs) on plastic substrates. Herein we explore a synergistic approach using a combination of chemical and physical sintering. We formulate a binder-free TiO2 paste based on “nanoglue” as the chemical sintering agent, and use it to construct a photoelectrode on plastic by low-temperature physical compression to further improve the connectivity of TiO2 films. We systematically investigated the factors affecting the photovoltaic performance and found the conditions to achieve electron diffusion lengths as long as 25 μm and charge collection efficiencies as high as 95%, as electrochemical impedance spectroscopy measurements indicate. We apply this approach to obtain a DSC deposited on plastic displaying 6.4% power conversion efficiency based on commercial P25 titania particles.

Graphical abstract: Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates: combination of chemical and physical sintering

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Publication details

The article was received on 31 May 2015, accepted on 03 Sep 2015 and first published on 03 Sep 2015


Article type: Paper
DOI: 10.1039/C5RA10290A
Citation: RSC Adv., 2015,5, 76795-76803
  • Open access: Creative Commons BY-NC license
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    Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates: combination of chemical and physical sintering

    Y. Li, K. Yoo, D. Lee, J. Y. Kim, H. J. Son, J. H. Kim, C. Lee, H. Míguez and M. J. Ko, RSC Adv., 2015, 5, 76795
    DOI: 10.1039/C5RA10290A

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