Enhancement of dye-sensitized photocurrents by gold nanoparticles: effects of dye-particle spacing |
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| Authors: | Kawawaki Tokuhisa Takahashi Yukina Tatsuma Tetsu |
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| Affiliation: | Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan. |
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| Abstract: | Photocurrents of a ruthenium dye-TiO(2) system are enhanced by gold nanoparticles (100 or 40 nm diameter) embedded in TiO(2). As dye-particle spacing decreases to 10 nm, enhancement factor and intensity of localized electric fields at the TiO(2) surface increase. A further decrease in the spacing suppresses the enhancement. |
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