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Isoindigo derivatives for application in p-type dye sensitized solar cells

机译：isoindigo衍生物在p型染料中敏化太阳能电池

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摘要

In this study, we have investigated for the first time the use of isoindigo derivatives as sensitizers in NiO-based dye-sensitized solar cells (DSSCs). For this purpose, two indigo sensitizers were prepared and their electronic properties were characterized by UV/visible spectroscopy, cyclic voltammetry and time-dependent density functional theory (TD-DFT). The first dye contains a N, N-di(4-benzoic acid) phenylamine moiety acting as anchoring/donor group, and the isoindigo acting as the acceptor, while the second compound is a dyad which is based on the same structure, but is additionally functionalized with a naphthalene imide unit, acting as a secondary electron acceptor. The electronic properties were also modeled by TD-DFT quantum chemistry calculations and they revealed that a charge transfer band is present between the trisarylamine donor part and the isoindigo moiety. The photovoltaic performances of these new dyes were evaluated in NiO-based DSSCs with both iodide/triiodide and cobalt electrolytes. It turned out that they perform well since the photocurrent was generated up to the wavelength of 700 nm. Altogether, these results underscore the viability of isoindigo dyes for p-DSSCs.
机译：在本研究中，我们首次调查了在基于NIO的染料敏化太阳能电池（DSSCs）中的isoIndigo衍生物作为敏化剂。为此目的，制备了两种靛蓝敏化剂，其电子性质的特征在于UV /可见光谱，循环伏安法和时间依赖性密度泛函理论（TD-DFT）。第一染料含有N，N-DI（4-苯甲酸）苯胺部分作用为锚定/供体基团，其作用作为受体的异吲哚，而第二种化合物是基于相同结构的二元，但是是用萘酰亚胺单元官能化，作为二次电子受体。电子特性也由TD-DFT量子化学计算建模，并且他们揭示了三芳基胺供体部和异吲哚部分之间存在电荷转移带。通过碘化物/三碘化物和钴电解质在基于NIO的DSSC中评估这些新染料的光伏性能。结果证明，它们表现良好，因为光电流产生高达700nm的波长。完全，这些结果强调了isoindigo染料的可行性P-DSSCs。

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  • 来源
    《RSC Advances》 |2015年第104期|共10页
  • 作者

    Ameline Dorine; Diring Stephane; Farre Yoann; Pellegrin Yann; Naponiello Gaia; Blart Errol; Charrier Benoit; Dini Danilo; Jacquemin Denis; Odobel Fabrice;

  • 作者单位

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Roma La Sapienza Dept Chem I-00185 Rome Italy;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Roma La Sapienza Dept Chem I-00185 Rome Italy;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

    Univ Nantes Univ LUNAM CNRS UMR 6230 Chim &

    Interdisciplinarite Synth Anal Modelisat C F-44322 Nantes 3 France;

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  • 正文语种 eng
  • 中图分类 化学;
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