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Improved performance of dye-sensitized solar cells upon sintering of a PEDOT cathode at various temperatures

机译：在各种温度下烧结染色阴极时染料敏化太阳能电池的性能

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摘要

Poly(3,4-ethylenedioxythiophene) (PEDOT) thin films have attracted considerable attention as cathodes for dye-sensitized solar cells (DSSCs) due to their air-stable, light-weight and conductive nature. To demonstrate their thermal stability as cathodes, PEDOT thin films coated via electrochemical polymerization on fluorine doped tin oxide (FTO) plates were sintered at different temperatures (50, 100, 150, 200, and 300 degrees C) for 1 h and a comparison was made with the as-prepared PEDOT thin films. We observed a negative temperature coefficient effect up to 200 degrees C along with lower surface roughness upon increasing the sintering temperature. Dye solar cells were fabricated using PEDOT thin films (sintered at different temperatures) and as-prepared PEDOT cathodes, and their respective performances were studied. The results showed increased efficiency with the increase in sintering temperatures of the cathode up to 200 degrees C (eta = 4.33%) under the present experimental conditions. Cathodes sintered at 300 degrees C had poor electrochemical behavior and J-V performance, which may be due to polymer degradation.
机译：聚（3,4-亚乙二氧基噻吩）（PEDOT）薄膜由于其空气稳定，轻质和导电性而引起了染料敏化太阳能电池（DSSCs）的阴极的显着关注。为了证明它们作为阴极的热稳定性，通过电化学聚合在氟掺杂的氧化锡（FTO）板上涂覆的佩特薄膜在不同的温度（50,100,150,200和300℃）下烧结1小时并进行比较用AS准备的佩特薄膜制成。在增加烧结温度时，我们观察到负温度系数高达200摄氏度高达200摄氏度。使用PEDOT薄膜（在不同温度下烧结）和制备的佩特阴极制造染料太阳能电池，研究了它们各自的性能。结果表明，在本实验条件下，阴极烧结温度的烧结温度的增加增加了效率增加，该效率高达200℃（ETA = 4.33％）。在300摄氏度下烧结的阴极具有差的电化学行为和J-V性能，这可能是由于聚合物降解。

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  • 来源
    《RSC Advances》 |2020年第8期|共8页
  • 作者

    Peri Rajagopal; Kumar Mathan P.; Muthuraaman B.;

  • 作者单位

    Univ Madras Sch Chem Sci Dept Energy Guindy Campus Chennai 600025 Tamil Nadu India;

    Univ Madras Sch Chem Sci Dept Energy Guindy Campus Chennai 600025 Tamil Nadu India;

    Univ Madras Sch Chem Sci Dept Energy Guindy Campus Chennai 600025 Tamil Nadu India;

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  • 正文语种 eng
  • 中图分类 化学;
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