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首页> 外文期刊>Journal of physical chemistry letters >Sequential Doping Reveals the Importance of Amorphous Chain Rigidity in Charge Transport of Semi-Crystalline Polymers
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Sequential Doping Reveals the Importance of Amorphous Chain Rigidity in Charge Transport of Semi-Crystalline Polymers

机译：序贯掺杂揭示了半晶聚合物电荷传输中非晶链刚度的重要性

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摘要

Sequential doping is a promising new doping technique for semicrystalline polymers that has been shown to produce doped films with higher conductivity and more uniform morphology than conventional doping processes, and where the dopant placement in the film can be controlled. As a relatively new technique, however, much work is needed to understand the resulting polymer-dopant interactions upon sequential doping. A combination of infrared spectroscopy and theoretical simulations shows that the dopants selectively placed in the amorphous regions in the film via sequential doping result in highly localized polarons. We find that the presence of dopants within the amorphous regions of the film leads to an increase in conjugation length of the amorphous chains upon doping, increasing film connectivity and hence improving the overall conductivity of the film compared with the conventional doping processes.
机译：序贯掺杂是用于半结晶聚合物的有希望的新掺杂技术，所述半结晶聚合物已经显示为产生具有较高导电性和比传统掺杂工艺更均匀的形态的掺杂膜，并且可以控制薄膜中的掺杂剂放置。 然而，作为一种相对较新的技术，需要在连续掺杂时理解所得聚合物掺杂物相互作用。 红外光谱和理论模拟的组合表明，掺杂剂通过顺序掺杂导致高度局部化的极性，选择性地置于膜中的非晶区域中。 我们发现，与常规掺杂工艺相比，薄膜的无定形区域内的掺杂剂的存在导致非晶链的共轭长度的增加，并因此提高了与常规掺杂方法相比提高了膜的总电导率。

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