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Three-dimensional nanocomposite formed by hydrophobic multiwalled carbon nanotubes threading titanium dioxide as the counter electrode of enhanced performance dye-sensitized solar cells

机译:通过疏水多壁碳纳米管形成的三维纳米复合二氧化钛作为增强性能染料敏化太阳能电池的对电极

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摘要

A novel strategy of fast solvent induced assembly is used to synthesize a three-dimensional (3D) nanocomposite of multiwalled carbon nanotubes (MWCNTs) and TiO2, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs). The structure and morphology studies show that the as-prepared nanocomposite possesses a porous structure, large specific surface area and abundant active sites. Electrochemical impedance spectroscopy and cyclic voltammetry analysis reveal that the developed structure facilitates a fast rate of reduction of I-3(-) and promotes charge transportation. The DSSCs exhibit a remarkable enhanced power conversion efficiency (PCE) of 7.95%, as compared to 7.38% for the conventional Pt CE, after irradiation under standard conditions (AM 1.5G, 100 mW cm(-2)).
机译:快速溶剂诱导组件的新策略用于合成多壁碳纳米管(MWCNT)和TiO2的三维(3D)纳米复合物,作为染料敏化太阳能电池(DSSCs)的对电极(CE)。 结构和形态学研究表明,制备的纳米复合材料具有多孔结构,大的比表面积和丰富的活性位点。 电化学阻抗光谱和循环伏安法分析表明,开发结构有助于减少I-3( - )的快速减少并促进电荷运输。 DSSCs表现出显着的增强功率转换效率(PCE)为7.95%,而常规PT CE的7.38%相比,在标准条件下照射后(am 1.5g,100mW cm(-2))。

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  • 来源
    《RSC Advances》 |2016年第60期|共8页
  • 作者单位

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Nanjing Univ Posts &

    Telecommun Ctr Adv Funct Ceram Nanjing 210046 Jiangsu Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organ Chem Mat 368 Youyi Ave Wuhan 430062 Peoples R China;

    Huazhong Univ Sci &

    Technol Ctr Nanoscale Characterizat &

    Devices CNCD Wuhan Natl Lab Optoelect Luoyu Rd 1037 Wuhan 430074 Peoples R China;

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

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