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首页> 外文期刊>Nanotechnology research journal >Two-and Three-Dimensional Structure Design of Counter Electrode Based on Carbon Nanotube/Graphene in Dye-Sensitized Solar Cells
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Two-and Three-Dimensional Structure Design of Counter Electrode Based on Carbon Nanotube/Graphene in Dye-Sensitized Solar Cells

机译：碳纳米管/石墨烯在染料敏化太阳能电池中对电极的二维和三维结构设计

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摘要

Graphene (G) and carbon nanotube (CNTs)have been widely used as counter electrode (CE)materials in dye-sensitized solar cells (DSSCs), due to their outstanding mechanical properties, high surface area, superior electrocatalytic and excellent conductivity.In this chapter,we described a method to use graphene oxide (GO) as a "surfactant" to synthesize 2D-CNT/G-films without adding any traditional surfactants. DSSCs assembled using 2D-CNT/G-films as a CE deliver a power conversion efficiency up to 5.29%, which reaches 68.70% of that of cells prepared using a platinum film CE (7.70%). Further,3D-CNTs/Gaerogel was synthesized and used as an alternative to platinized FTO in DSSCs. An island-like 3D-structure formed on the FTO using the spin-coating method. The 3D-CNTs/G-based CEs exhibited excellent power conversion efficiency (PCE) (8.31%) compared to Pt (7.56%). The excellent performance of DSSCs can be attributed to the high electrical conductivity and good electrocatalytic activity induced by the CNTs and the excellent catalytic properties of G, coupled with the 3D-structure with a larger surface area and good surface hydrophilicity for increased electrolyte-electrode interactions and electrolyte/reactant diffusion. Hence,our results demonstrate that optimizing the structure of CNTs/Gcomposite can effectively improve the performance of DSSCs, and the 3D-structure design manifest considerable potential for DSSC-related applications.
机译：石墨烯（G）和碳纳米管（CNT）由于其出色的机械性能，高表面积，优异的电催化性和出色的导电性而被广泛用作染料敏化太阳能电池（DSSC）中的对电极（CE）材料。本章中，我们描述了一种在不添加任何传统表面活性剂的情况下使用氧化石墨烯（GO）作为“表面活性剂”来合成2D-CNT / G膜的方法。使用2D-CNT / G膜作为CE组装的DSSC的功率转换效率高达5.29％，达到使用铂膜CE（7.70％）制备的电池的68.70％。此外，合成了3D-CNTs / Gaerogel，并将其用作DSSC中铂化FTO的替代物。使用旋涂法在FTO上形成岛状3D结构。与Pt（7.56％）相比，基于3D-CNTs / G的CE表现出出色的功率转换效率（PCE）（8.31％）。 DSSC的优异性能可归因于CNT诱导的高电导率和良好的电催化活性以及G的优异催化性能，再加上具有较大表面积和良好表面亲水性的3D结构，可增强电解质-电极相互作用和电解质/反应物扩散。因此，我们的结果表明，优化CNT / G复合材料的结构可以有效地改善DSSC的性能，而3D结构设计对于DSSC相关的应用则显示出相当大的潜力。

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  • 来源
    《Nanotechnology research journal》 |2015年第1期|123-147|共25页
  • 作者

    Jie Ma; Fei Yu;

  • 作者单位

    College of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai, P. R. of China;

    State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, P. R. of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    2D/3D structure; counter eletrode; carbon nanotube; graphene; aerogel;

    机译：2D / 3D结构;对电极碳纳米管石墨烯气凝胶;

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