Correlating Electronic Structure and Device Physics with Mixing Region Morphology in High-Efficiency Organic Solar Cells
文献类型：期刊论文
| 作者 | Leng, Shifeng2; Hao, Tianyu2; Zhou, Guanqing2; Zhu, Lei2; Zhong, Wenkai2; Yang, Yankang2; Zhang, Ming2; Xu, Jinqiu2; Zhan, Junzhe1; Zhou, Zichun2 |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2022-01-12 |
| 页码 | 9 |
| 关键词 | electronic structure energy loss morphology organic solar cells photophysical process |
| DOI | 10.1002/advs.202104613 |
| 通讯作者 | Liu, Feng(fengliu82@sjtu.edu.cn) |
| 英文摘要 | The donor/acceptor interaction in non-fullerene organic photovoltaics leads to the mixing domain that dictates the morphology and electronic structure of the blended thin film. Initiative effort is paid to understand how these domain properties affect the device performances on high-efficiency PM6:Y6 blends. Different fullerenes acceptors are used to manipulate the feature of mixing domain. It is seen that a tight packing in the mixing region is critical, which could effectively enhance the hole transfer and lead to the enlarged and narrow electron density of state (DOS). As a result, short-circuit current (J(SC)) and fill factor (FF) are improved. The distribution of DOS and energy levels strongly influences open-circuit voltage (V-OC). The raised filling state of electron Fermi level is seen to be key in determining device V-OC. Energy disorder is found to be a key factor to energy loss, which is highly correlated with the intermolecular distance in the mixing region. A 17.53% efficiency is obtained for optimized ternary devices, which is the highest value for similar systems. The current results indicate that a delicate optimization of the mixing domain property is an effective route to improve the V-OC, J(SC), and FF simultaneously, which provides new guidelines for morphology control toward high-performance organic solar cells. |
| 资助项目 | National Key R&D Program of China[2020YFB1505500] ; National Key R&D Program of China[2020YFB1505502] ; National Natural Science Foundation of China[51973110] ; National Natural Science Foundation of China[21734009] ; National Natural Science Foundation of China[21905102] ; Shanghai Science and Technology Commission science and technology innovation action plan[20ZR1426200] ; Shandong Provincial Natural Science Foundation[ZR2019LFG005] ; Key research project of Shandong Probince[2020CXGC010403] ; DOE, Office of Science, and Office of Basic Energy Sciences |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000741351100001 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14902]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Liu, Feng |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 4.Donghua Univ, Coll Mat Sci & Engn, Ctr Adv Low Dimens Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China 5.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Leng, Shifeng,Hao, Tianyu,Zhou, Guanqing,et al. Correlating Electronic Structure and Device Physics with Mixing Region Morphology in High-Efficiency Organic Solar Cells[J]. ADVANCED SCIENCE,2022:9. |
| APA | Leng, Shifeng.,Hao, Tianyu.,Zhou, Guanqing.,Zhu, Lei.,Zhong, Wenkai.,...&Liu, Feng.(2022).Correlating Electronic Structure and Device Physics with Mixing Region Morphology in High-Efficiency Organic Solar Cells.ADVANCED SCIENCE,9. |
| MLA | Leng, Shifeng,et al."Correlating Electronic Structure and Device Physics with Mixing Region Morphology in High-Efficiency Organic Solar Cells".ADVANCED SCIENCE (2022):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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