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The effect of co-sensitization methods between N719 and boron dipyrromethene triads on dye-sensitized solar cell performance

机译:N719和硼二吡咯亚甲基三联体之间的共敏化方法对染料敏化太阳能电池性能的影响

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A boron dipyrromethene (BODIPY) featuring triphenylamine triad, BD , has been synthesized as a co-sensitizer in dye-sensitized solar cells (DSCs). The optical and electrochemical properties of BD have been characterized using UV-vis spectroscopy and cyclic voltammetry. DSCs containing co-sensitizers, N719 and BD , have been prepared in two procedures using co-deposition and stepwise deposition. The influences of the staining processes, co-deposition and stepwise deposition on dye loading, dye dispersion on a TiO _(2) photoanode and DSC performance have been investigated using FTIR, SEM-EDS, I – V test and IPCE measurement, respectively. We found that stepwise co-sensitization provided higher solar cell efficiency, compared to those stained with a co-deposition method. N719 /5% BD showed the highest power conversion efficiency of 5.14%. Interestingly, the enhanced device efficiency was 66% higher than that of a device containing the single N719 dye.
机译:在染料敏化太阳能电池(DSC)中,已合成了以三苯胺三联体(BD)为特征的硼二吡咯亚甲基(BODIPY)作为助敏剂。 BD的光学和电化学性质已使用紫外可见光谱和循环伏安法进行了表征。包含共增敏剂N719和BD的DSC已通过共沉积和逐步沉积两种方法制备。分别使用FTIR,SEM-EDS,IV测试和IPCE测量研究了染色过程,共沉积和逐步沉积对染料负载,TiO _(2)光电阳极上的染料分散和DSC性能的影响。我们发现,与用共沉积方法染色的那些相比,逐步共敏化提供了更高的太阳能电池效率。 N719 / 5%BD具有最高的5.14%功率转换效率。有趣的是,增强的设备效率比包含单一N719染料的设备效率高66%。

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