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首页> 外文期刊>Journal of power sources >Effect of random p-n junctions on quasi-solid-state dye-sensitized solar cells with polymer electrolyte
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Effect of random p-n junctions on quasi-solid-state dye-sensitized solar cells with polymer electrolyte

机译：随机p-n结对具有聚合物电解质的准固态染料敏化太阳能电池的影响

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摘要

In this paper, the effect of p-n junction additives via blending p-type semiconductors (NiO and CuI) with n-type TiO_2 in polymer electrolyte on quasi-solid-state DSSCs is studied. The conduction mechanism of DSSCs modified with random p-n junctions has been investigated by FTIR, SEM, UV-Vis and electrochemical analysis. The results indicate that the CuI-TiO_2 p-n blend modified polymer electrolyte reaches the maximum ionic conductivity of 6.44 mS cm~(-1), which is almost twice over than that of pure-TiO_2 modified one. From photovoltaic study, it is found that introducing CuI-TiO_2 and NiO-TiO_2 p-n blends in polymer electrolyte can obviously improve electron recombination and light-to-electric conversion efficiency of DSSCs. The conversion efficiency of CuI-TiO_2 p-n blend modified DSSC is 3.34%, which is much higher than that of pure TiO_2 modified device (1.76%). It is also demonstrated that the photovoltaic properties of DSSCs directly depends on the ratio of p-type CuI and n-type TiO_2 in the p-n blends and the optimal conversion efficiency of 4.27% is obtained at CuI:TiO_2 ratio of 4:1.
机译：本文研究了在聚合物电解质中将p型半导体（NiO和CuI）与n型TiO_2共混的p-n结添加剂对准固态DSSC的影响。通过FTIR，SEM，UV-Vis和电化学分析研究了用随机p-n结修饰的DSSC的导电机理。结果表明，CuI-TiO_2 p-n共混改性聚合物电解质的最大离子电导率达到6.44 mS cm〜（-1），几乎是纯TiO_2改性电解质的两倍。从光伏研究中发现，在聚合物电解质中引入CuI-TiO_2和NiO-TiO_2 p-n共混物可以明显提高DSSC的电子复合和光电转换效率。 CuI-TiO_2 p-n共混改性DSSC的转化效率为3.34％，远高于纯TiO_2改性器件的1.76％。还证明了DSSC的光伏性质直接取决于p-n共混物中p-型CuI和n-型TiO_2的比例，并且当CuI：TiO_2为4：1时，最佳转化效率为4.27％。

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  • 来源
    《Journal of power sources》 |2014年第25期|218-224|共7页
  • 作者

    Jiarui Cui; Ying Yang; Pengfei Yi; Xueyi Guo;

  • 作者单位

    School of Metallurgy and Environment, Central South University, Changsha 410083, China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, China, Cleaner Metallurgical Engineering Research Center, Nonferrous Metal Industry of China, 410083, China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, China, Cleaner Metallurgical Engineering Research Center, Nonferrous Metal Industry of China, 410083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dye-sensitized solar cells; P-n blend additives; Polymer electrolyte; Nickel oxide and copper iodide (Ⅰ); Electron recombination;

    机译：染料敏化太阳能电池;P-n共混添加剂;高分子电解质;氧化镍和碘化铜（Ⅰ）;电子复合;

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