{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T21:42:55Z","timestamp":1792186975809,"version":"4.4.0"},"reference-count":48,"publisher":"Wiley","issue":"37","license":[{"start":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T00:00:00Z","timestamp":1778544000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T00:00:00Z","timestamp":1778544000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Developing environmentally benign and efficient non\u2010fused ring electron acceptors (NFREAs) with simplified molecular structures and reduced synthetic complexities is a key objective for advancing OSC technology. In conventional NFREA synthesis, typically relies on Stille\/Suzuki coupling, which suffers from poor atom economy, multiple steps, high cost, and environmental concerns. Herein, we report a series of A\u2010D\u2010A type fully NFREAs, namely SN\u20104, SN\u20105, and SN\u20106 were designed and synthesized in three steps via a direct C\u2010H arylation strategy that avoids fused\u2010ring construction and hazardous organotin reagents. These acceptors exhibit narrow optical bandgaps (\u223c1.44\u00a0eV) with strong near\u2010infrared light absorption, enabling superior light\u2010harvesting. Molecular dynamics simulations reveal pronounced terminal\u2010terminal interactions, highlighting the pivotal role of end\u2010group interactions in governing molecular packing. Among the series, the binary device based on PM6:SN\u20106 achieves a remarkable power conversion efficiency (PCE) of 15.86% under green\u2010solvent processing, surpassing SN\u20104 (7.85%) and SN\u20105 (12.88%) owing to enhanced charge transport, low radiative energy losses, and reduced trap\u2010assisted recombination. This work demonstrates a sustainable, efficient, and scalable pathway for developing low\u2010cost, narrow\u2010bandgap, high\u2010performance NFREAs, and advancing their potential for future organic photovoltaic applications.<\/jats:p>","DOI":"10.1002\/smll.202514730","type":"journal-article","created":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T08:52:53Z","timestamp":1778575973000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Facile Direct C\u2010H Arylation Approach Enables Low\u2010Band Gap Completely Non\u2010Fused Ring Acceptors for High Efficiency Organic Solar Cells"],"prefix":"10.1002","volume":"22","author":[{"given":"Nizamuddin","family":"Shaik","sequence":"first","affiliation":[{"name":"Department of Chemistry SRM University\u2010 AP  Amaravati Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hemalatha","family":"Maricherla","sequence":"additional","affiliation":[{"name":"Department of Chemistry SRM University\u2010 AP  Amaravati Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nousheen","family":"Syed","sequence":"additional","affiliation":[{"name":"Department of Chemistry SRM University\u2010 AP  Amaravati Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ravulakollu Srinivasa","family":"Rao","sequence":"additional","affiliation":[{"name":"Department of Polymers and Functional Materials CSIR\u2010Indian Institute of Chemical Technology (IICT)  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bommaramoni","family":"Yadagiri","sequence":"additional","affiliation":[{"name":"Department of Physical Chemistry and Technology of Polymers Faculty of Chemistry Silesian University of Technology  Gliwice Poland"},{"name":"Centre For Organic and Nanohybrid Electronics (CONE) Silesian University of Technology  Gliwice Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rahul","family":"Singhal","sequence":"additional","affiliation":[{"name":"Department of Physics Malviya National Institute of Technology JLN Marg  Jaipur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahesh Kumar","family":"Ravva","sequence":"additional","affiliation":[{"name":"Department of Chemistry SRM University\u2010 AP  Amaravati Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ganesh D.","family":"Sharma","sequence":"additional","affiliation":[{"name":"Department of Physics and Electronics Communication Engineering The LNM Institute of Information Technology  Jaipur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9977-4879","authenticated-orcid":false,"given":"Kamatham","family":"Narayanaswamy","sequence":"additional","affiliation":[{"name":"Department of Chemistry SRM University\u2010 AP  Amaravati Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,12]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5TA00443H"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.1c00955"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010024\u201046022\u20103"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010024\u201051359\u2010w"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.4c01503"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41563\u2010024\u201002062\u20100"},{"key":"e_1_2_7_8_1","article-title":"Tuning Exciton Dynamics and Energy Transfer in Ternary Organic Solar Cells Using Pyridine\u2010Flanked DPP Acceptors","volume":"25","author":"Moreno L. 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