期刊
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
卷 15, 期 11, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.202100386
关键词
inverted device structure; layer-by-layer solution processing; polymer solar cells; vertical distribution
资金
- National Natural Science Foundation of China [52003093, 21805097, 12105306]
- Guangdong Natural Science Foundation [2019A1515012137]
- Guangzhou Science and Technology Foundation [201904010361]
- Xiejialin Foundation in the Institute of High Energy Physics [E15466U210]
The study fabricated inverted LBL-processed PSCs using the layer-by-layer solution process and inverted device structure, showing significant enhancement in device performance post-treatment. The vertical composition distribution evolution of the LBL photoactive layer was investigated using XPS and NR techniques, offering potential guidance for the further utilization of organic photovoltaics.
The layer-by-layer (LBL) solution process is a potential technology for future application of polymer solar cells (PSCs), while the vertical composition distribution evolution of the LBL active layer is still unknown. In this work, taking advantage of the LBL method and inverted device structure, inverted LBL-processed PSCs are fabricated with polymer donor PM6 and nonfullerene small-molecule acceptor Y6. As-prepared devices with PM6 as the bottom layer and Y6 as the top layer exhibit low power conversion efficiencies (PCEs), while the post-treatment brings a significant boost on the device performance (from 8.5% to 14.4%). The vertical composition distribution evolution of LBL photoactive layer is investigated by the combination of surface atom distribution analysis via X-ray photoemission spectroscopy (XPS) and composition distribution across the bulk of the films via neutron reflectivity (NR). The findings can potentially offer positive guidance for the further utilization of organic photovoltaics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据