Direct and seamless coupling of TiO2 nanotube photonic crystal to dye-sensitized solar cell: a single-step approach |
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Authors: | Yip Cho Tung Huang Haitao Zhou Limin Xie Keyu Wang Yu Feng Tianhua Li Jensen Tam Wing Yim |
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Affiliation: | Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. |
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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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Keywords: | photonic crystals dye‐sensitized solar cells TiO2 nanotubes electrochemical anodization |
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