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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 705Electrospray Coating of a TiO2 Electrode for...

Electrospray Coating of a TiO₂ Electrode for Dye-Sensitized Solar Cells by a Post-Treatment Method

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Abstract:

A mesoporous TiO₂ photo-electrode for dye-sensitized solar cells (DSSCs) was fabricated by an electrospray method using a solution of dispersed TiO₂ nanocrystals (P25). A mesoporous TiO₂ disk has a larger surface area than P25. The sub micrometer-sized TiO₂ disk promotes light scattering, thereby increasing the photocurrent conversion efficiency. However, the electrosprayed TiO₂ electrodes have many pores and disconnected electron pathways. Thus, we investigated the enhanced electrical contact of an electrosprayed TiO₂ electrode using a hot-pressing process and a titanium tetrachloride (TiCl₄) treatment process. After optimizing the post-treatment process of an electrosprayed TiO₂ electrode, the cell shows conversion efficiency up to 6% at standard sunlight of AM 1.5.

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Periodical:

Applied Mechanics and Materials (Volume 705)

Pages:

51-55

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.705.51

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Online since:

December 2014

Authors:

Jeong Hwa Kim*, Shi Joon Sung, Dae Kue Hwang

Keywords:

DSSC, Electrospray, Post-Treatment

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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