Direct and seamless coupling of TiO2 nanotube photonic crystal to dye-sensitized solar cell: a single-step approach.

Yip, Cho Tung; Huang, Haitao; Zhou, Limin; Xie, Keyu; Wang, Yu; Feng, Tianhua; Li, Jensen; Tam, Wing Yim · Adv Mater · 2011

basic_science · Level V

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Abstract

A TiO(2) nanotube layer with a periodic structure is used as a photonic crystal to greatly enhance light harvesting in TiO(2) nanotube-based dye-sensitized solar cells. Such a tube-on-tube structure fabricated by a single-step approach facilitates good physical contact, easy electrolyte infiltration, and efficient charge transport. An increase of over 50% in power conversion efficiency is obtained in comparison to reference cells without a photonic crystal layer (under similar total thickness and dye loading).

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