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To address this issue, we developed two vinyl \u03c0\u2010spacer linking\u2010site isomerized giant molecule acceptors (GMAs) with the \u03c0\u2010spacer linking on the inner carbon (EV\u2010i) or out carbon (EV\u2010o) of benzene end group of the SMA with longer alkyl side chains (ECOD) for the capability of non\u2010halogenated solvent\u2010processing. Interestingly, EV\u2010i possesses a twisted molecular structure but enhanced conjugation, while EV\u2010o shows a better planar molecular structure but weakened conjugation. The OSC with EV\u2010i as acceptor processed by the non\u2010halogenated solvent\n                    <jats:italic>o<\/jats:italic>\n                    \u2010xylene (\n                    <jats:italic>o<\/jats:italic>\n                    \u2010XY) demonstrated a higher PCE of 18.27\u2009% than that of the devices based on the acceptor of ECOD (16.40\u2009%) or EV\u2010o (2.50\u2009%). 18.27\u2009% is one of the highest PCEs among the OSCs fabricated from non\u2010halogenated solvents so far, benefitted from the suitable twisted structure, stronger absorbance and high charge carrier mobility of EV\u2010i. The results indicate that the GMAs with suitable linking site would be the excellent candidates for fabricating high performance OSCs processed by non\u2010halogenated solvents.\n                  <\/jats:p>","DOI":"10.1002\/anie.202303551","type":"journal-article","created":{"date-parts":[[2023,4,26]],"date-time":"2023-04-26T12:29:03Z","timestamp":1682512143000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":143,"title":["Giant Molecule Acceptor Enables Highly Efficient Organic Solar Cells Processed Using Non\u2010halogenated Solvent"],"prefix":"10.1002","volume":"62","author":[{"given":"Hongmei","family":"Zhuo","sequence":"first","affiliation":[{"name":"Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences  Beijing 100190 China"},{"name":"School of Chemical Science University of Chinese Academy of Sciences  Beijing 100049 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