材料科学
三元运算
能量转换效率
沉积(地质)
聚合物
活动层
聚合物太阳能电池
接受者
图层(电子)
纳米技术
光电子学
复合材料
薄膜晶体管
凝聚态物理
物理
程序设计语言
生物
计算机科学
沉积物
古生物学
作者
Jianghao Jin,Qiao Wang,Wenfei Shen,Laurence A. Belfiore,Wenfei Shen
标识
DOI:10.1021/acsami.4c00411
摘要
Acquiring the ideal blend morphology of the active layer to optimize charge separation and collection is a constant goal of polymer solar cells (PSCs). In this paper, the ternary strategy and the sequential deposition process were combined to make sufficient use of the solar spectrum, optimize the energy-level structure, regulate the vertical phase separation morphology, and ultimately enhance the power conversion efficiency (PCE) and stability of the PSCs. Specifically, the donor and acceptor illustrated a gradient-blended distribution in the sequential deposition-processed films, thus resulting in facilitated carrier characteristics in the gradient-blended devices. Consequently, the PSCs based on D18-Cl/Y6:ZY-4Cl have achieved a device efficiency of over 18% with the synergetic improvement of open-circuit voltage (VOC), short-circuit current density (JSC), and fill factor (FF). Therefore, this work reveals a facile approach to fabricating PSCs with improved performance and stability.
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