PMID- 35018748 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240824 IS - 2198-3844 (Electronic) IS - 2198-3844 (Linking) VI - 9 IP - 6 DP - 2022 Feb TI - Correlating Electronic Structure and Device Physics with Mixing Region Morphology in High-Efficiency Organic Solar Cells. PG - e2104613 LID - 10.1002/advs.202104613 [doi] LID - 2104613 AB - 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. CI - (c) 2022 The Authors. Advanced Science published by Wiley-VCH GmbH. FAU - Leng, Shifeng AU - Leng S AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Hao, Tianyu AU - Hao T AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhou, Guanqing AU - Zhou G AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhu, Lei AU - Zhu L AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhong, Wenkai AU - Zhong W AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Yang, Yankang AU - Yang Y AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhang, Ming AU - Zhang M AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Xu, Jinqiu AU - Xu J AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhan, Junzhe AU - Zhan J AD - School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhou, Zichun AU - Zhou Z AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Chen, Jiajun AU - Chen J AD - School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Lu, Shirong AU - Lu S AD - Chongqing Institute of Green and Intelligent Technology, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chinese Academy of Sciences, Chongqing, 400714, P. R. China. FAU - Tang, Zheng AU - Tang Z AD - Center for Advanced Low-dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China. FAU - Shi, Zhiwen AU - Shi Z AD - School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Zhu, Haiming AU - Zhu H AD - Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China. FAU - Zhang, Yongming AU - Zhang Y AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. FAU - Liu, Feng AU - Liu F AUID- ORCID: 0000-0002-5572-8512 AD - School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. LA - eng GR - 2020YFB1505500/National Key R&D Program of China/ GR - 2020YFB1505502/National Key R&D Program of China/ GR - 51973110/National Natural Science Foundation of China/ GR - 21734009/National Natural Science Foundation of China/ GR - 21905102/National Natural Science Foundation of China/ GR - 20ZR1426200/Shanghai Science and Technology Commission science and technology innovation action plan/ GR - ZR2019LFG0005/Shandong Provincial Natural Science Foundation/ GR - 2020CXGC010403/Key research project of Shandong Probince/ GR - 7.3.3/Portions of this research were carried out at beam line/ GR - 11.0.1.2/Portions of this research were carried out at beam line/ GR - Advanced Light Source, Lawrence Berkeley National Laboratory/ GR - DOE, Office of Science, and Office of Basic Energy Sciences/ PT - Journal Article DEP - 20220112 PL - Germany TA - Adv Sci (Weinh) JT - Advanced science (Weinheim, Baden-Wurttemberg, Germany) JID - 101664569 SB - IM PMC - PMC8867200 OTO - NOTNLM OT - electronic structure OT - energy loss OT - morphology OT - organic solar cells OT - photophysical process COIS- The authors declare no conflict of interest. EDAT- 2022/01/13 06:00 MHDA- 2022/01/13 06:01 PMCR- 2022/01/12 CRDT- 2022/01/12 06:55 PHST- 2021/11/28 00:00 [revised] PHST- 2021/10/16 00:00 [received] PHST- 2022/01/13 06:00 [pubmed] PHST- 2022/01/13 06:01 [medline] PHST- 2022/01/12 06:55 [entrez] PHST- 2022/01/12 00:00 [pmc-release] AID - ADVS3404 [pii] AID - 10.1002/advs.202104613 [doi] PST - ppublish SO - Adv Sci (Weinh). 2022 Feb;9(6):e2104613. doi: 10.1002/advs.202104613. Epub 2022 Jan 12.