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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Performance of Si/PEDOT:PSS Solar Cell Controlled by Dipole Moment of Additives
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Performance of Si/PEDOT:PSS Solar Cell Controlled by Dipole Moment of Additives

机译：Si / PEDOT的性能：PSS太阳能电池由偶极剂的添加剂控制

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摘要

Solar cells composed of silicon (Si) and polymer films have attracted much attention because of their high performance and facile preparation using aqueous solutions. Although a large amount of research has been carried out to further improve their performance, the factors required to achieve this are not yet fully understood from the perspective of physical chemistry. Here, we show the effect of additives on the performance of Si/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) solar cells using six different additives. The relationships among the solar cell performance, electrical properties, and the structure of the polymer film are examined by changing the additive and conducting cyclic voltammetry, electric conductivity, and two-dimensional grazing incidence angle X-ray diffraction measurements. The dipole moment of the additive molecule was determined to be a key factor for improving the performance of Si/PEDOT:PSS solar cells. In particular, an additive with a higher dipole moment (mu > 3 ID) caused an increase in the rate of charge diffusion and the ratio of face-on to edge-on structures of PEDOT molecules.
机译：由于使用水溶液的高性能和容易的制剂，由硅（Si）和聚合物薄膜组成的太阳能电池引起了很多关注。虽然已经进行了大量的研究以进一步提高它们的性能，但从物理化学的角度来看，尚未完全理解所需的因素。在这里，我们展示了添加剂对Si / Poly（3,4-亚乙二氧基噻吩）的性能的影响：使用六种不同添加剂的聚（苯乙烯磺酸盐）（PEDOT磺酸盐）（PEDOT：PSS）太阳能电池。通过改变添加剂和导电循环伏安法，导电性和二维放牧入射角X射线衍射测量来检查太阳能电池性能，电性能和聚合物膜的结构之间的关系。确定添加剂分子的偶极力矩是改善Si / PEDOT：PSS太阳能电池性能的关键因素。特别地，具有较高偶极矩（MU> 3 ID）的添加剂导致电荷扩散速率的增加和面对边缘结构的面部上的比率。

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