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Single-Crystalline Self-Branched Anatase Titania Nanowires for Dye-Sensitized Solar Cells
Zhenquan Li,Huang Yang,Fei Wu,Jianxun Fu,Linjun Wang,Weiguang Yang 대한금속·재료학회 2017 ELECTRONIC MATERIALS LETTERS Vol.13 No.2
The morphology of the anatase titania plays an important role in improving thephotovoltaic performance in dye-sensitized solar cells. In this work, singlecrystallineself-branched anatase TiO2 nanowires have been synthesized byhydrothermal method using TBAH and CTAB as morphology controlling agents. The obtained self-branched TiO2 nanowires dominated by a large percentage of(010) facets. The photovoltaic conversion efficiency (6.37%) of dye-sensitizedsolar cell (DSSC) based on the self-branched TiO2 nanowires shows a significantimprovement (26.6%) compared to that of P25 TiO2 (5.03%). The enhancedperformance of the self-branched TiO2 nanowires-based DSSC is due to heir largepercent of exposed (010) facets which have strong dye adsorption capacity andeffective charge transport of the self-branched 1D nanostructures.