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首页> 外文期刊>Advanced Functional Materials >Semiconducting Carbon Nanotubes for Improved Efficiency and Thermal Stability of Polymer-Fullerene Solar Cells
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Semiconducting Carbon Nanotubes for Improved Efficiency and Thermal Stability of Polymer-Fullerene Solar Cells

机译：半导体碳纳米管，用于提高聚合物-富勒烯太阳能电池的效率和热稳定性

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摘要

The effects of the incorporation of semiconducting single-walled nanotubes (sc-SWNTs) with high purity on the bulk heterojunction (BHJ) organic solar cell (OSC) based on regioregular poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C-61-butyric acid methyl ester (rr-P3HT:PCBM) are reported for the first time. The sc-SWNTs induce the organization of the polymer phase, which is evident from the increase in crystallite size, the red-shifted absorption characteristics and the enhanced hole mobility. By incorporating sc-SWNTs, OSC with a power conversion efficiency (PCE) as high as 4% can be achieved, which is approximate to 8% higher than our best control device. A novel application of sc-SWNTs in improving the thermal stability of BHJ OSCs is also demonstrated. After heating at 150 degrees C for 9 h, it is observed that the thermal stability of rr-P3HT: PCBM devices improves by more than fivefold with inclusion of sc-SWNTs. The thermal stability enhancement is attributed to a more suppressed phase separation, as shown by the remarkable decrease in the formation of sizeable crystals, which in turn can be the outcome of a more controlled crystallization of the blend materials on the nanotubes.
机译：掺入高纯度半导体单壁纳米管（sc-SWNTs）对基于区域规则聚（3-己基噻吩-2,5-二基）的本体异质结（BHJ）有机太阳能电池（OSC）的影响：[6 ，6]-苯基-C-61-丁酸甲酯（rr-P3HT：PCBM）首次报道。 sc-SWNTs诱导聚合物相的组织，这从微晶尺寸的增加，红移吸收特性和增强的空穴迁移率可以明显看出。通过合并sc-SWNT，可以实现功率转换效率（PCE）高达4％的OSC，这比我们最好的控制设备高出大约8％。还展示了sc-SWNT在改善BHJ OSC的热稳定性方面的新应用。在150摄氏度下加热9小时后，观察到rr-P3HT：PCBM器件的热稳定性在加入sc-SWNT的情况下提高了五倍以上。热稳定性的提高归因于相分离的抑制，这可通过较大尺寸晶体形成的显着减少来表明，这反过来又可以是纳米管上共混材料的结晶得到更可控制的结果。

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  • 来源
    《Advanced Functional Materials》 |2016年第1期|51-65|共15页
  • 作者

    Salim Teddy; Lee Hang-Woo; Wong Lydia Helena; Oh Joon Hak; Bao Zhenan; Lam Yeng Ming;

  • 作者单位

    Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore;

    Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA;

    Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore;

    UNIST, Low Dimens Carbon Mat Ctr, Sch Nanobiosci & Chem Engn, Ulsan 689798, South Korea;

    Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA;

    Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore;

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