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However, the reported Y\u2010GMAs all use a single\u2010typed linking site, making it difficult to finely\u2010tune their optoelectronic properties. Herein, we develop a non\u2010fully conjugated Y\u2010GMA (named 2Y\u2010we), with hybrid linking sites at the wing and end\u2010group of monomers, to combine the respective advantages of the wing and end\u2010group site linked counterparts. Compared to its parental monomer, 2Y\u2010we shows different intermolecular interactions, crystallinity, packing, and glass transition temperature, allowing optimized active layer morphology (including appropriate phase separation and ordered molecular packing) and stability. Consequently, the D18\/2Y\u2010we\u2010based organic solar cells (OSCs) obtain an improved power\u2010conversion\u2010efficiency (PCE) of 17.4% with both higher open\u2010circuit voltage (\n                    <jats:italic>V<\/jats:italic>\n                    <jats:sub>OC<\/jats:sub>\n                    ) and short\u2010circuit current density (\n                    <jats:italic>J<\/jats:italic>\n                    <jats:sub>SC<\/jats:sub>\n                    ), due to the reduced energy loss and efficient exciton dissociation. Inspired by its high\n                    <jats:italic>V<\/jats:italic>\n                    <jats:sub>OC\u00a0<\/jats:sub>\n                    \u00d7\u00a0\n                    <jats:italic>J<\/jats:italic>\n                    <jats:sub>SC<\/jats:sub>\n                    , 2Y\u2010we is introduced into D18:L8\u2010BO to fabricate ternary devices. Thanks to the further optimized morphology and improved charge transport, the ternary OSCs achieve a superior PCE of 19.9%, which is the highest value among the reported nonfully conjugated Y\u2010GMAs. Our developed hybrid linking\u2010site engineering for constructing high\u2010performance Y\u2010GMAs offers an approach to boost device efficiency.\n                  <\/jats:p>","DOI":"10.1002\/anie.202503721","type":"journal-article","created":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T09:04:17Z","timestamp":1740992657000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["Hybrid Linking Sites Constructed Non\u2010Fully Conjugated Asymmetric Dimerized Giant Molecule Acceptors for Organic Solar Cells with an Efficiency of \u224820%"],"prefix":"10.1002","volume":"64","author":[{"given":"Han","family":"Liu","sequence":"first","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luting","family":"Tang","sequence":"additional","affiliation":[{"name":"College of Chemistry Key Lab of Environment\u2010Friendly Chemistry and Application (Ministry of Education) Xiangtan University  Xiangtan 411105 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tengfei","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fan","family":"Yi","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"},{"name":"College of Chemistry Key Lab of Environment\u2010Friendly Chemistry and Application (Ministry of Education) Xiangtan University  Xiangtan 411105 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenyan","family":"Su","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering Xi'an University of Science and Technology  Xi'an 710054 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Xiang","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"},{"name":"School of Chemical Science and Technology Yunnan University  Kunming 650500 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bitao","family":"Dong","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zefan","family":"Yao","sequence":"additional","affiliation":[{"name":"College of Chemistry and Molecular Engineering Peking University  Beijing 100871 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianyu","family":"Hu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education) School of Optoelectronic Materials &amp; Technology Jianghan University  Wuhan 430056 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaozhao","family":"Bi","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hairui","family":"Bai","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianhua","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Chemical Science and Technology Yunnan University  Kunming 650500 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xunchang","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education) School of Optoelectronic Materials &amp; Technology Jianghan University  Wuhan 430056 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuhang","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruijie","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Electronic and Information Engineering Research Institute for Smart Energy (RISE) The Hong Kong Polytechnic University  Hong Kong, Kowloon 999077 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manjun","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Chemistry Key Lab of Environment\u2010Friendly Chemistry and Application (Ministry of Education) Xiangtan University  Xiangtan 411105 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Ma","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3762-1340","authenticated-orcid":false,"given":"Qunping","family":"Fan","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University  Xi'an 710049 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,3,10]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.adj3654"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-021-03942-0"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41928-023-00950-y"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joule.2021.12.017"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joule.2024.03.009"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202313860"},{"key":"e_1_2_7_7_1","author":"An M.","year":"2024","journal-title":"Angew. 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