{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T15:59:29Z","timestamp":1791475169006,"version":"4.3.4"},"reference-count":26,"publisher":"American Chemical Society (ACS)","issue":"40","license":[{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22575029"],"award-info":[{"award-number":["22575029"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62105129"],"award-info":[{"award-number":["62105129"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Changzhou Science and Technology Plan","award":["CJ20253060"],"award-info":[{"award-number":["CJ20253060"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>While solvent additive engineering is a widely adopted strategy for morphological optimization in organic solar cells (OSCs), conventional high-boiling-point additives often induce excessive molecular aggregation and aggregation-caused quenching (ACQ), which deteriorate electroluminescence quantum efficiency (EQEEL) and exacerbate nonradiative recombination. Herein, we overcome this trade-off by precisely modulating the alkyl chain length of dibromoalkane additives to decouple energetic disorder from nonradiative losses. Through a systematic investigation of a homologous series, 1,4-dibromobutane (DBrB), 1,6-dibromohexane (DBrH), and 1,8-dibromooctane (DBrO), we demonstrate that DBrH uniquely optimizes intermolecular packing while maintaining low energetic disorder and suppressing ACQ. In contrast, shorter-chain DBrB provides insufficient kinetic control, whereas longer-chain DBrO triggers excessive aggregation and severe nonradiative recombination. Leveraging this chain-length-dependent design principle, DBrH enables a performance of 19.1% in PM6:BTP-eC9 binary devices without compromising open-circuit voltage and further exhibits excellent universality in ternary blends, achieving 20.0% efficiency in the PM6:L8-BO:L8-BO-F system. This work establishes alkyl chain length tuning as a precise and generalizable strategy for simultaneously minimizing energetic disorder and nonradiative voltage losses in high-performance OSCs.<\/jats:p>","DOI":"10.1021\/acs.jpclett.6c02900","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T08:02:22Z","timestamp":1790323342000},"page":"11695-11702","source":"Crossref","is-referenced-by-count":0,"title":["Precise Alkyl\nChain Tuning of Dibromoalkane Additives\nEnables Efficient Organic Solar Cells with Minimal Voltage Loss"],"prefix":"10.1021","volume":"17","author":[{"given":"Huizhen","family":"Xu","sequence":"first","affiliation":[{"name":"Changzhou University , , ,","place":["Changzhou, P. R. China, 213164"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Wu","sequence":"additional","affiliation":[{"name":"Changzhou University , , ,","place":["Changzhou, P. R. China, 213164"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yonglin","family":"He","sequence":"additional","affiliation":[{"name":"Changzhou University , , ,","place":["Changzhou, P. R. China, 213164"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0227-0392","authenticated-orcid":true,"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"Chinese Academy of Sciences , , ,","place":["Beijing, P. R. China, 100190"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4201-8749","authenticated-orcid":true,"given":"Xin","family":"Song","sequence":"additional","affiliation":[{"name":"Changzhou University , , ,","place":["Changzhou, P. R. China, 213164"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4244-2638","authenticated-orcid":true,"given":"Weiguo","family":"Zhu","sequence":"additional","affiliation":[{"name":"Changzhou University , , ,","place":["Changzhou, P. R. China, 213164"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"2026100811163518800_cit1","doi-asserted-by":"publisher","first-page":"444","DOI":"10.1038\/s41563-024-02062-0","article-title":"Organic solar cells with 20.82% efficiency and high\ntolerance of active layer thickness through crystallization sequence\nmanipulation","volume":"24","author":"Chen","year":"2025","journal-title":"Nat. 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Sci."}],"container-title":["The Journal of Physical\nChemistry Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acs.jpclett.6c02900","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/jpclcd\/article-pdf\/17\/40\/11695\/68648072\/acs.jpclett.6c02900.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/jpclcd\/article-pdf\/17\/40\/11695\/68648072\/acs.jpclett.6c02900.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T15:35:12Z","timestamp":1791473712000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/jpclcd\/article\/17\/40\/11695\/5438224\/Precise-Alkyl-Chain-Tuning-of-Dibromoalkane"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,25]]},"references-count":26,"journal-issue":{"issue":"40","published-online":{"date-parts":[[2026,9,25]]},"published-print":{"date-parts":[[2026,10,8]]}},"URL":"https:\/\/doi.org\/10.1021\/acs.jpclett.6c02900","relation":{},"ISSN":["1948-7185"],"issn-type":[{"value":"1948-7185","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,25]]}}}