Abstract Organic solar cells (OSCs) have been attracting strong research interest as a promising clean renewable energy source due to their beneficial characteristics such as lightweight, mechanical flexibility, low cost, and solution processability. Herein, phenyl ester-based donor polymer (Ph-Ester-BTF) and [6]-phenyl C71-butyric acid methyl ester (PC71BM) acceptor was used as photoactive materials for the OSCs. With using Ph-Ester-BTF polymer as donor for OSCs, power conversion efficiency (PCE) was obtained as 2.68% for pristine chlorobenzene (CB) processed OSCs. Different solvents and additives were used for comparative study, wherein pristine CB yielded the better photovoltaic device performance of OSCs. Charge carrier mobility and film surface morphology was studied for further interpretation of the device performance.

中文翻译：

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苯酯聚合物基有机太阳能电池不同溶剂和添加剂的对比研究

摘要 有机太阳能电池 (OSCs) 作为一种有前途的清洁可再生能源，由于其轻质、机械柔韧性、低成本和溶液加工性等优点，一直吸引着人们强烈的研究兴趣。在此，基于苯酯的供体聚合物（Ph-Ester-BTF）和[6]-苯基C71-丁酸甲酯（PC71BM）受体用作OSCs的光敏材料。使用 Ph-Ester-BTF 聚合物作为 OSC 的供体，原始氯苯 (CB) 加工的 OSC 的功率转换效率 (PCE) 为 2.68%。使用不同的溶剂和添加剂进行比较研究，其中原始 CB 产生了更好的 OSC 光伏器件性能。研究了电荷载流子迁移率和薄膜表面形态，以进一步解释器件性能。