Highly conductive and stable PEDOT:PSS films were prepared by ethylene-glycol (EG) addition and heated-stir treatment that enhanced the electric conductivity up to 1228.4 S cm⁻¹. Analysis of the long-term figure-of-merit (FoM) performances of EG-treated films with respect to variations in stirring temperatures indicated that the highest value of 78.5 was realized by the facile heated-stir treatment at 90 °C. The underlying mechanism was validated by the synergetic effect of reordering linear PEDOT chains and the effective removal of water via the supplement of thermal energy that considerably displayed the improved film conductivity based on the formation of interconnected PEDOT structures. Furthermore, via combining treated PEDOT:PSS films and Si nanowires, high-performance hybrid solar cells were realized. This was accomplished by reduced charge-transfer resistance and sound heterojunction characteristics that facilitated the charge separation and eventual charge collection by the electrode, thus contributing to the enhancement efficiency. The optimal heated-stir treatment at 90 °C led to improved cell conversion efficiency achieving 12.2%, which was 1.3 times higher than the result based on the conventional room-temperature process.

中文翻译：

---

高导电性PEDOT：PSS膜，通过添加乙二醇和加热搅拌处理制成，可增强光伏性能

通过添加乙二醇（EG）和加热搅拌处理来制备高导电性和稳定的PEDOT：PSS膜，该处理将电导率提高至1228.4 S cm ^-1。对EG处理过的薄膜的长期品质因数（FoM）性能进行的搅拌温度变化分析表明，通过在90°C下进行便捷的加热搅拌处理，可以达到最高的78.5。通过对线性PEDOT链进行重新排序的协同效应以及通过补充热能有效去除水的协同效应验证了其基本机理，该热能在互连PEDOT结构形成的基础上显着提高了薄膜的电导率。此外，通过结合处理过的PEDOT：PSS薄膜和Si纳米线，实现了高性能混合太阳能电池。这是通过降低电荷传输阻力和声音异质结特性实现的，该特性有助于电极之间的电荷分离和最终电荷收集，从而有助于提高效率。最佳的90°C加热搅拌处理可提高细胞转化效率，达到12.2％，这是基于常规室温工艺的结果的1.3倍。