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首页> 外文期刊>Solar Energy >Water-dispersible polyaniline/graphene oxide counter electrodes for dye-sensitized solar cells: Influence of synthesis route on the device performance
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Water-dispersible polyaniline/graphene oxide counter electrodes for dye-sensitized solar cells: Influence of synthesis route on the device performance

机译：用于染料敏化太阳能电池的水分散性聚苯胺/石墨烯氧化物计数器：合成路线对器件性能的影响

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摘要

The fabrication of efficient and platinum-free counter electrodes (CE) is a highlighted topic for the development of advanced dye-sensitized solar cells (DSSCs). Here, we developed water-dispersible polyaniline/graphene oxide (PANI-GO)-based CEs, which can be straightforwardly prepared by deposition of the nanocomposite dispersion onto FTO substrate. The water-dispersibility properties of PANI-GO allow the formation of smooth films without organic solvents making it a promising material for high-scalable, reduced cost and 'greener' fabrication of energy conversion-storage devices. Aqueous dispersions of PANI-GO nanocomposites were prepared by two different routes: physical mixture of PANI and GO, and in situ polymerization of aniline in GO aqueous dispersion. DSSC assembled with emeraldine salt polyaniline (PANI-ES)-based CE generated current density (J(sc)) of 12.37 mA/cm(2) and power conversion efficiency (PCE) of 5.09%, which was comparable to the device prepared with Pt-based CE (PCE of 5.15%). The addition of GO is found to increase the J(sc) to 12.91 mA/cm(2) and the fill factor to 67% in CE containing 0.45 wt% of GO (in respect to aniline during synthesis) where the PCE is boosted to 6.12%, which is about 20% higher than Pt-based CE. The investigation of both morphological features and spectroscopic properties showed that PANI-GO nanocomposites prepared by in situ route have dissimilar protonation and oxidation states when compared with those prepared by physical mixture route. These results give insights into the role of GO in tuning PANI chemical and physical properties. Also offers a simpler and more efficient methodology for the synthesis of new CEs for DSSCs.
机译：高效和铂 - 无反电区（CE）的制造是用于开发晚期染料敏化太阳能电池（DSSC）的突出显示的主题。在这里，我们开发了水分散性聚苯胺/石墨烯（基于PANI-GO）的CES，其可以通过将纳米复杂分散体沉积到FTO底物上来直截了当地制备。 Pani-Go的水分散性性能允许形成无有机溶剂的光滑膜，使其成为能量转换储存装置的高可扩展性，成本和“更环保”的高度可扩展性，成本和“更环保”的材料。通过两种不同的途径制备Pani-Go纳米复合材料的水分散体：PANI的物理混合物，以及在GO水分散体中的苯胺的原位聚合。用祖母绿盐聚苯胺（PANI-ES）组装的DSSC，CE产生的电流密度（J（SC））为12.37 mA / cm（2），电力转换效率（PCE）为5.09％，其与使用的装置相当基于PT的CE（PCE为5.15％）。发现添加的添加将J（SC）增加到12.91mA / cm（2），并且CE中的填充因子含有0.45wt％的GO（在合成期间的苯胺）的CE中的67％，其中PCE被提升到6.12％，比PT的CE高约20％。对形态特征和光谱性质的研究表明，与原位途径制备的泛纳米复合材料与通过物理混合物途径制备的那些相比，具有不同的质子化和氧化状态。这些结果对调整PANI化学物质和物理性质的作用提供了洞察。还为DSSCS的新CES提供更简单和更有效的方法。

著录项

  • 来源
    《Solar Energy》 |2020年第9期|1202-1213|共12页
  • 作者

    Lemos Hugo G.; Barba David; Selopal Gurpreet S.; Wang Chao; Wang Zhiming M.; Duong Adam; Rosei Federico; Santos Sydney F.; Venancio Everaldo C.;

  • 作者单位

    Fed Univ ABC UFABC Ctr Engn Modeling & Appl Social Sci BR-09210580 Santo Andre SP Brazil;

    Ctr Energie Mat & Telecommun Inst Natl Rech Sci 1650 Boul Lionel Boulet Varennes PQ J3X 1S2 Canada;

    Ctr Energie Mat & Telecommun Inst Natl Rech Sci 1650 Boul Lionel Boulet Varennes PQ J3X 1S2 Canada|Univ Elect Sci & Technol China Inst Fundamental & Frontier Sci Chengdu 610054 Peoples R China;

    Ctr Energie Mat & Telecommun Inst Natl Rech Sci 1650 Boul Lionel Boulet Varennes PQ J3X 1S2 Canada;

    Univ Elect Sci & Technol China Inst Fundamental & Frontier Sci Chengdu 610054 Peoples R China;

    Univ Quebec Trois Rivieres Inst Rech Hydrogene Dept Chim Biochim & Phys 3351 Blvd Forges Trois Rivieres PQ G9A 5H7 Canada;

    Ctr Energie Mat & Telecommun Inst Natl Rech Sci 1650 Boul Lionel Boulet Varennes PQ J3X 1S2 Canada;

    Fed Univ ABC UFABC Ctr Engn Modeling & Appl Social Sci BR-09210580 Santo Andre SP Brazil;

    Fed Univ ABC UFABC Ctr Engn Modeling & Appl Social Sci BR-09210580 Santo Andre SP Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polyaniline; Graphene oxide; Nanocomposites; Dye-sensitized solar cells; Counter electrode; Green process;

    机译：聚苯胺;石墨烯;纳米复合材料;染料敏化太阳能电池;对电极;绿色过程;

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