Electrochemical study on the TiO2 porous electrodes for metal-free dye-sensitized solar cells

D. W. Zhang; S. Chen; X. D. Li; Z. A. Wang; J. H. Shi; Z. Sun; X. J. Yin; S. M. Huang

doi:10.1117/12.840614

12 October 2009 Electrochemical study on the TiO₂ porous electrodes for metal-free dye-sensitized solar cells

D. W. Zhang, S. Chen, X. D. Li, Z. A. Wang, J. H. Shi, Z. Sun, X. J. Yin, S. M. Huang

Proceedings Volume 7518, Photonics and Optoelectronics Meetings (POEM) 2009: Solar Cells, Solid State Lighting, and Information Display Technologies; 75180B (2009) https://doi.org/10.1117/12.840614
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

Nanocrystalline TiO₂ porous electrodes were prepared by screen-printing method in order to efficiently control the fabrication process. TiO₂ viscous pastes were prepared from commercial TiO₂ nano powder using ethyl cellulose as a porosity controlling agent. A metal-free organic dye (indoline dye D102) was used as a sensitizer. TiO₂ porous electrodes with different thicknesses were investigated. The optical and physical properties of the TiO₂ films, dye adsorption behavior and performance of dye-sensitized solar cells (DSCs) were investigated systemically. The electronic and ionic processes in DSCs were analysized and discussed by electrochemical impedance spectroscopy (EIS). High conversion efficiencies over 8.00 % under illumination of simulated AM1.5 sunlight (60mW/cm²) were achieved.

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D. W. Zhang, S. Chen, X. D. Li, Z. A. Wang, J. H. Shi, Z. Sun, X. J. Yin, and S. M. Huang "Electrochemical study on the TiO₂ porous electrodes for metal-free dye-sensitized solar cells", Proc. SPIE 7518, Photonics and Optoelectronics Meetings (POEM) 2009: Solar Cells, Solid State Lighting, and Information Display Technologies, 75180B (12 October 2009); https://doi.org/10.1117/12.840614

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KEYWORDS

Titanium dioxide

Dye sensitized solar cells

Electrodes

Resistance

Transparent conductors

Adsorption

Particles

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