材料科学
有机太阳能电池
掺杂剂
接受者
兴奋剂
电子受体
图层(电子)
能量转换效率
活动层
化学工程
光化学
纳米技术
光电子学
化学
聚合物
复合材料
物理
薄膜晶体管
工程类
凝聚态物理
作者
Qiaoling Chen,Hao Huang,Guangliu Ran,Cai’e Zhang,Di Hu,Xinjun Xu,Wenkai Zhang,Chuluo Yang,Yonggang Wu,Zhishan Bo
标识
DOI:10.1021/acsami.3c10032
摘要
Molecular dopants can effectively improve the performance of organic solar cells (OSCs). Here, PM6/BTP-eC9-4Cl-based OSCs are fabricated by a layer-by-layer (LbL) deposition method, and the electron acceptor BTP-eC9-4Cl layer is properly doped by n-type dopant benzyl viologen (BV) or [4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)phenyl]dimethyl-amine (N-DMBI-H). The power conversion efficiency (PCE) of OSCs increases from 16.80 to 17.61 or 17.84% when the acceptor layer is doped by BV (0.01 wt %) or N-DMBI-H (0.01 wt %), respectively. At the optimal doping concentration, the device exhibits more balanced charge transport, fewer bimolecular recombinations, faster charge separation and transfer, and better stability. This doping strategy has good universality; when the acceptor layer L8-BO of LbL OSCs is doped by 0.01 wt % BV or 0.01 wt % N-DMBI-H, the PCE increases from 17.49 to 18.35 or 18.25%, respectively. All in all, our studies have demonstrated that the doping strategy is effective in enhancing the performance of OSCs.
科研通智能强力驱动
Strongly Powered by AbleSci AI