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The Application of Electrospun Titania Nanofibers in Dye-Sensitized Solar Cells

The Application of Electrospun Titania Nanofibers in Dye-Sensitized Solar Cells

Hana Krysova, Arnost Zukal, Jana Trckova-Barakova, Aravind Kumar Chandiran, Mohammad Khaja Nazeeruddin, Michael Grätzel, Ladislav Kavan

Chimia (Aarau). 2013;67(3):149-54.

PMID: 23574954

Abstract:

Titania nanofibers were fabricated using the industrial Nanospider(TM) technology. The preparative protocol was optimized by screening various precursor materials to get pure anatase nanofibers. Composite films were prepared by mixing a commercial paste of nanocrystalline anatase particles with the electrospun nanofibers, which were shortened by milling. The composite films were sensitized by Ru-bipyridine dye (coded C106) and the solar conversion efficiency was tested in a dye-sensitized solar cell filled with iodide-based electrolyte solution (coded Z960). The solar conversion efficiency of a solar cell with the optimized composite electrode (η = 7.53% at AM 1.5 irradiation) outperforms that of a solar cell with pure nanoparticle film (η = 5.44%). Still larger improvement was found for lower light intensities. At 10% sun illumination, the best composite electrode showed η = 7.04%, referenced to that of pure nanoparticle film (η = 4.69%). There are non-monotonic relations between the film's surface area, dye sorption capacity and solar performance of nanofiber-containing composite films, but the beneficial effect of the nanofiber morphology for enhancement of the solar efficiency has been demonstrated.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1152310694	C106 Dye		1152310-69-4	Price

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