• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Honeycomb-Like Organized TiO_2 Photoanodes with Dual Pores for Solid-State Dye-Sensitized Solar Cells
【24h】

Honeycomb-Like Organized TiO_2 Photoanodes with Dual Pores for Solid-State Dye-Sensitized Solar Cells

机译：蜂窝状有机染料敏化太阳能电池双孔TiO_2光阳极。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A solid-state dye-sensitized solar cell (ssDSSC) with 7.4% efficiency at 100 mW/cm~2 is reported. This efficiency is one of the highest observed for N719 dye. High performance is achieved via a honeycomb-like, organized mesoporous TiO_2 photoanode with dual pores, high porosity, good intercon-nectivity, and excellent light scattering properties. The TiO_2 photoanodes are prepared without any TiCI_4 treatment via a one-step, direct self-assembly of hydrophilically preformed TiO_2 nanocrystals and poly{vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer as a titania source and a structure-directing agent, respectively. Upon controlling the secondary forces between the polymer/TiO_2 hybrid and the solvent by varying the amounts of HCI/H_2O mixture or toluene, honeycomb-like structures are generated to improve light scattering properties. Such multifunctional nanostructures with dual pores provide good pore-filling of solid polymer electrolyte with large volume, enhanced light harvesting and reduced charge recombination, as confirmed by reflectance spectroscopy, incident photon-to-electron conversion efficiency (IPCE), and electrochemical impedance spectroscopy (EIS) analysis.
机译：据报道，固态染料敏化太阳能电池（ssDSSC）在100 mW / cm〜2的效率为7.4％。这种效率是N719染料观察到的最高效率之一。通过具有双孔，高孔隙率，良好的互连性和出色的光散射特性的蜂窝状，有组织的介孔TiO_2光阳极实现高性能。 TiO_2光电阳极无需任何TiCl_4处理即可通过亲水性预制TiO_2纳米晶体和聚（氯乙烯）-g-聚（甲基丙烯酸氧乙烯酯）（PVC-g-POEM）接枝共聚物作为二氧化钛的一步直接自组装来制备源和结构导向剂。通过改变HCl / H_2O混合物或甲苯的量来控制聚合物/ TiO_2杂化物和溶剂之间的次级力，会产生蜂窝状结构以改善光散射性能。此类具有双孔的多功能纳米结构可为固体聚合物电解质提供大体积的良好孔隙填充，增强了光收集功能，并减少了电荷重组，这已通过反射光谱，入射光子至电子转换效率（IPCE）和电化学阻抗光谱（ EIS）分析。

著录项

  • 来源
    《Advanced Functional Materials》 |2013年第31期|3901-3908|共8页
  • 作者

    Sung Hoon Ahn; Won Seok Chi; Dongjun Kim; Sung Yeon Heo; Jong Hak Kim;

  • 作者单位

    Department of Chemical and Biomolecular Engineering Yonsei University 262 Seongsanno Seodaemun-gu Seoul 120-749, South Korea;

    Department of Chemical and Biomolecular Engineering Yonsei University 262 Seongsanno Seodaemun-gu Seoul 120-749, South Korea;

    Department of Chemical and Biomolecular Engineering Yonsei University 262 Seongsanno Seodaemun-gu Seoul 120-749, South Korea;

    Department of Chemical and Biomolecular Engineering Yonsei University 262 Seongsanno Seodaemun-gu Seoul 120-749, South Korea;

    Department of Chemical and Biomolecular Engineering Yonsei University 262 Seongsanno Seodaemun-gu Seoul 120-749, South Korea;

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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号