TANTALATE CRYSTAL PARTICLE, PRODUCTION METHOD OF THE SAME, AND DYE-SENSITIZED SOLAR CELL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a tantalate crystal particle synthesized by a flux method with a very low environmental load, a production method thereof, and a dye-sensitized solar cell using the tantalate crystal particle as a semiconductor electrode.

SOLUTION: The tantalate crystal particle has a lamella perovskite-type structure or a lamella structure and is a compound represented by general formula (1): XαYβTaγOδ or general formula (2): YζTaηOθ (wherein X is an alkali metal; Y is an alkali earth metal; α+2β+5γ=2δ; 2ζ+5η=2θ; and γ and η are each a positive number larger than 1).

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