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  • Title: TiO₂ photoanode structure with gradations in V concentration for dye-sensitized solar cells.
    Author: Liu Z, Li Y, Liu C, Ya J, E L, Zhao W, Zhao D, An L.
    Journal: ACS Appl Mater Interfaces; 2011 May; 3(5):1721-5. PubMed ID: 21491933.
    Abstract:
    V-TiO₂(GC) photoanode film with graduated structure was prepared in a dye-sensitized solar cell work electrode by layer-by-layer method using TiO₂ precursor with gradations in V concentration on the indium tin oxide transparent conducting glass from substrate to surface. The effects of the gradient in V concentration on the structures and properties of TiO₂ photoanode film were discussed. The structure of the gradient V concentration has remarkable influence on the final performance of the DSSCs and I-V characteristic measurement indicates an enhanced efficiency by 31% as compared to pure TiO₂ nanoparticles film samples due to abundant solar light, fast injection and transmission velocity and the slowdown recombination of photoexcited electrons, simultaneously.
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