Herein we report a complete family of conformationally restricted PProDOT derivatives with varying alkylene tether lengths. It was found that variation of the tether length and structure of the electropolymerizable monomer was successful in the fine-tuning of the electrochemical and optical properties of the subsequent material. It was found that the band gap of the materials could be varied between 1.94 and 2.26 eV, with the “sweet spot” for obtaining the maximum electronic band gap existing at the n = 6 tether length, while maintaining low redox potentials. It was also found that these polymers exhibited stable electrochromic behavior with colors varying from blue–purple to orange in their neutral states and transmissive in their doped states.
本文报道了一组构象受限的PProDOT衍
生物家族,其烷撑链长度各异。研究发现,通过改变链长及电聚合单体的结构,能够成功微调后续材料的电
化学和光学性质。材料的带隙可在1.94至2.26电子伏特之间变化,其中最佳链长n=6时可获得最大电子带隙,同时保持较低的氧化还原电位。这些聚合物还表现出稳定的电致变色行为,它们在中性状态下的颜色从蓝紫色到橙色不等,而在掺杂状态下则呈透明态。