Diffusion-cooperative Model for Charge Transport by Redox-active Non-conjugated Polymers,Journal of the American Chemical Society

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Diffusion-cooperative Model for Charge Transport by Redox-active Non-conjugated Polymers
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2018-01-09 , DOI: 10.1021/jacs.7b11272
Kan Sato ₁ , Rieka Ichinoi ₁ , Ryusuke Mizukami ₁ , Takuma Serikawa ₁ , Yusuke Sasaki ₁ , Jodie Lutkenhaus ₂ , Hiroyuki Nishide ₁ , Kenichi Oyaizu ₁

Affiliation

Charge transport processes in nonconjugated redox-active polymers with electrolytes were studied using a diffusion-cooperative model. For the first time, we quantitatively rationalized that the limited Brownian motion of the redox centers bound to the polymers resulted in the 103-4-fold decline of the bimolecular and heterogeneous charge transfer rate constants, which had been unexplained for half a century. As a next-generation design, a redox-active supramolecular system with high physical mobility was proposed to achieve the rate constant as high as in free solution system (>107 M-1 s-1) and populated site density (>1 mol/L).

中文翻译：

氧化还原活性非共轭聚合物电荷传输的扩散协同模型

使用扩散合作模型研究了具有电解质的非共轭氧化还原活性聚合物中的电荷传输过程。我们第一次定量地合理化了与聚合物结合的氧化还原中心的有限布朗运动导致双分子和异质电荷转移速率常数下降 103-4 倍，这在半个世纪以来一直无法解释。作为下一代设计，提出了一种具有高物理迁移率的氧化还原活性超分子系统，以实现与自由溶液系统 (>107 M-1 s-1) 和填充位点密度 (>1 mol/ L)。

更新日期：2018-01-09

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