Abstract This work presents the combination of NaCl and polyethylenimine ethoxylated (PEIE) as a double-layer electron transport layer (ETL, NaCl/PEIE) to enhance the capacity of electron transport. The polymer solar cell based on poly(3-hexylthiophene):phenyl C61-butenoic acid methyl ester achieves a high power conversion efficiency (PCE) of 3.83% by using a NaCl/PEIE bilayer as an ETL; moreover, its PCE is increased by 15% compared with the PCE of the pure PEIE device. Electrochemical impedance and conductivity measurements indicate that the performance of the device with the NaCl/PEIE double layer is enhanced because of its low interfacial contact resistance and fast charge transfer capability.

中文翻译：

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通过将 NaCl/聚乙烯亚胺乙氧基化双层用于高效聚合物太阳能电池来改善电子传输

摘要 这项工作提出了 NaCl 和聚乙烯亚胺乙氧基化 (PEIE) 的组合作为双层电子传输层 (ETL, NaCl/PEIE)，以提高电子传输能力。基于聚(3-己基噻吩):苯基C61-丁烯酸甲酯的聚合物太阳能电池通过使用NaCl/PEIE双层作为ETL实现了3.83%的高功率转换效率(PCE)；并且与纯PEIE设备的PCE相比，其PCE提高了15%。电化学阻抗和电导率测量表明，具有 NaCl/PEIE 双层的器件由于其低界面接触电阻和快速电荷转移能力而提高了性能。