有机太阳能电池
材料科学
聚合物
接受者
富勒烯
图层(电子)
形态学(生物学)
纤维
活动层
化学工程
纳米技术
制作
涂层
逐层
沉积(地质)
化学
复合材料
有机化学
替代医学
病理
古生物学
沉积物
工程类
物理
薄膜晶体管
生物
医学
生物化学
遗传学
凝聚态物理
作者
Kangkang Weng,Linglong Ye,Lei Zhu,Jinqiu Xu,Jiajia Zhou,Xiao Feng,Guanghao Lu,Songting Tan,Feng Liu,Yanming Sun
标识
DOI:10.1038/s41467-020-16621-x
摘要
Abstract Morphology control in laboratory and industry setting remains as a major challenge for organic solar cells (OSCs) due to the difference in film-drying kinetics between spin coating and the printing process. A two-step sequential deposition method is developed to control the active layer morphology. A conjugated polymer that self-assembles into a well-defined fibril structure is used as the first layer, and then a non-fullerene acceptor is introduced into the fibril mesh as the second layer to form an optimal morphology. A benefit of the combined fibril network morphology and non-fullerene acceptor properties was that a high efficiency of 16.5% (certified as 16.1%) was achieved. The preformed fibril network layer and the sequentially deposited non-fullerene acceptor form a robust morphology that is insensitive to the polymer batches, solving a notorious issue in OSCs. Such progress demonstrates that the utilization of polymer fibril networks in a sequential deposition process is a promising approach towards the fabrication of high-efficiency OSCs.
科研通智能强力驱动
Strongly Powered by AbleSci AI