Electrodeposition of ZnO/Dye Hybrid Thin Films for Dye-Sensitized Solar Cells

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概要

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• Upon cathodizing a conducting substrate in O2 saturated aqueous mixed solution of ZnCl2 and eosinY,ZnO/eosinY nano-hybrid films with high crystallinity, high transparency and grain boundary-free nano-porous structure are deposited. By soaking the films in soft alkaline solution, eosinY is completely removed without any change in film thickness. By re-loading various dyes onto the surface of these films, highly transparent ZnO films with various colors are easily obtained. The ZnO films thus loaded with various dyes are effectively applied to flexible and colorful dye-sensitized solar cells. Owing to superior properties of the films obtained under optimized conditions, the incident photon to current conversion efficiencies of the solar cells re-loaded with some kinds of organic dyes amount to 90%. Solar-to-electrical energy conversion efficiency of the DSSC employing D149 dye (Mitsubishi Paper Mills Limited) amount to 5.6% under illumination of AM1.5 simulated sun light (100 mW cm−2). Efficient flexible colorful solar cells by using ITO-coated PET film substrates have been fabricated. Novel application of our plastic solar cells such as wearable solar cells and the solar powered functional traffic signs has been proposed.

• 公益社団法人 電気化学会の論文

著者

• Minoura Hideki

  Environmental And Renewable Energy System Division Graduate School Of Engineering Gifu University

• YOSHIDA Tsukasa

  Center of Innovative Photovoltaic Systems (CIPS), Environmental and Renewable Energy Systems (ERES) Division, Graduate School of Engineering, Gifu University

• MINOURA Hideki

  Environmental and Renewable Energy Systems Division, Graduate School of Engineering, Gifu University

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• The Effect of Pre-treatments of F-Doped SnO2 Substrates for Cathodic Nucleation of ZnO Crystals in Aqueous ZnCl2 Solution with Dissolved O2
• Effect of Photoetching on Photoinduced Hydrophilicity of Titanium Dioxide Film
• Electrodeposition of ZnO/Dye Hybrid Thin Films for Dye-Sensitized Solar Cells

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