Abstract Water-soluble regioregular poly{3-[(6-sodium sulfonate)hexyl]thiophene} (PT6S) and poly{3-[(6-trimethylammoniumbromide)hexyl]thiophene} (PT6N) have been synthesized and employed both as photoactive layers for the assembling of “green” bulk-heterojunction organic solar cells and as charge-collection layers in a cell with “classic” architecture. While the photovoltaic performances obtained with the two aforementioned polymers were lower than the reference cell, their latter use allowed to notably increase the inherent J-V properties, leading to a considerable enhancement in the overall photovoltaic output. The power conversion efficiency of the optimized multilayer BHJ solar cell reached 4.78%, revealing a higher efficiency than the reference cell (3.63%).

中文翻译：

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水溶性聚噻吩作为有效电荷传输层，用于改善体异质结聚合物太阳能电池的光伏性能

摘要 水溶性区域规整聚{3-[(6-磺酸钠)己基]噻吩}(PT6S)和聚{3-[(6-三甲基溴化铵)己基]噻吩}(PT6N)已被合成并用作光敏层用于组装“绿色”体异质结有机太阳能电池，并作为具有“经典”架构的电池中的电荷收集层。虽然用上述两种聚合物获得的光伏性能低于参考电池，但后者的使用允许显着增加固有的 JV 特性，从而显着提高整体光伏输出。优化后的多层 BHJ 太阳能电池的功率转换效率达到 4.78%，显示出比参考电池（3.63%）更高的效率。