The polyphosphazene backbone provides a versatile platform to explore numerous synthesis and structure–property relationships for many technological applications. In this study, a new class of polyphosphazene semiconducting materials was synthesized via macromolecular substitution, which integrates a PN backbone with thiophene‐based side groups. The synthesized thiophene‐based polymers were subjected to chemical oxidation (oxidative coupling) to optimize their optoelectronic properties through side‐chain chemistry. Both the spectroscopic and electronic analyses revealed that optical and electronic properties, as well as glass transition temperatures could be modulated by chemical oxidation of the polymers. The suitability of the polymers as potential semiconductors was further evaluated using their steady‐state fluorescence quenching behavior in the presence of four different dopants (PC70BM, PC60BM, F4TCNQ, and TCNQ). It was found that the addition of dopant as a quencher to the polymer solutions does not form a complex in the ground state, and its excited state shows an efficient decrease in fluorescence intensity without altering the shape and peak position of the fluorescence band. The overall results demonstrate that the utilization of chemical oxidation via side‐chain chemistry of polyphosphazenes offers an adaptable toolbox that can be used to make new and potentially useful polymeric semiconductors for applications in organic electronics.

中文翻译：

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具有可调节光电特性的基于噻吩的聚磷腈-溶液的光物理特性和定量掺杂

聚磷腈骨架为探索许多技术应用中众多的合成和结构-性质之间的关系提供了一个通用平台。在这项研究中，一类新的聚磷腈的半导体材料的经取代大分子，它集成了合成 PN 带有噻吩侧基的骨架。对合成的基于噻吩的聚合物进行化学氧化（氧化偶联），以通过侧链化学优化其光电性能。光谱分析和电子分析均表明，可以通过聚合物的化学氧化来调节光学和电子性质以及玻璃化转变温度。通过在四种不同掺杂剂（PC70BM，PC60BM，F4TCNQ和TCNQ）存在下的稳态荧光猝灭行为，进一步评估了聚合物作为潜在半导体的适用性。发现在聚合物溶液中添加掺杂剂作为猝灭剂不会在基态形成络合物，并且其激发态显示出荧光强度的有效降低，而没有改变荧光带的形状和峰位置。总体结果表明，通过聚磷腈的侧链化学反应利用化学氧化提供了一种适应性强的工具箱，可用于制造用于有机电子领域的新型且潜在有用的聚合物半导体。