Synergistic effect of TiO2 hierarchical submicrospheres for high performance dye-sensitized solar cells

The performance of dye-sensitized solar cells（DSCs） could be improved by using rationally designed mesoporous film structure for electron collection, dye adsorption and light scattering. The development of a novel double layer film prepared by TiO_2 hierarchical submicrospheres and nanoparticles was...

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Bibliographic Details
Published in:Science China. Chemistry 2017-06, Vol.60 (6), p.822-828
Main Authors: Sheng, Jiang, Hu, Linhua, Mo, Li’e, Ye, Jichun, Dai, Songyuan
Format: Article
Language:English
Subjects:
Adsorption
Aqueous solutions
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Dye-sensitized solar cells
Dyes
Efficiency
Electrolytes
Electrolytic cells
Electron transport
Energy conversion efficiency
Ethanol
Glass substrates
Light
Light scattering
Morphology
Nanoparticles
Nanorods
Polyethylene glycol
Scanning electron microscopy
Spheres
Synergistic effect
Titanium dioxide
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Summary:The performance of dye-sensitized solar cells（DSCs） could be improved by using rationally designed mesoporous film structure for electron collection, dye adsorption and light scattering. The development of a novel double layer film prepared by TiO_2 hierarchical submicrospheres and nanoparticles was reported in this article. The submicrospheres were composed of rutile nanorods of 10 nm diameter and the length of 150–250 nm, which facilitated fast electron transport, charge collection and light scattering. Using a double layer structure consisting of the 10 wt% film as a dye loading layer and the 50 wt% film as the light scattering layer, C101 sensitizer and liquid electrolyte, DSC yielded power conversion efficiency of 9.68% under 1 sun illumination.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-016-0428-3