{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T00:22:23Z","timestamp":1791850943317,"version":"4.3.4"},"reference-count":37,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T00:00:00Z","timestamp":1741132800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Macromol. Rapid Commun."],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We present a conjugated copolymer designed as a near\u2010infrared (NIR) emitter for organic light\u2010emitting diodes (NIR\u2010OLEDs). The low bandgap donor\u2010acceptor copolymer, comprising a terthiophene derivative (3T) and benzothiadiazole (BT), is end\u2010capped with bulky triphenyalmine (TPA) groups (3TBT\u2010TPA). Compared with the parent homologue capped with simple phenyl rings, 3TBT\u2010TPA shows enhanced solubility in organic solvents with improved photoluminescence quantum yield thanks to a reduced close packing of chains. 3TBT\u2010TPA, used both as neat emitting layer and blended with fluorene\u2010benzothiadiazole (F8BT) host copolymer in a NIR\u2010OLEDs, shows external quantum efficiency up to 0.58%. Additionally, chiral induction is achieved in the F8BT:3TBT\u2010TPA blend film using a commercial chiral dopant, yielding circularly polarized (CP), photoluminescence (PL) and electroluminescence (EL) in the range 500\u2013800 nm with a maximum dissymmetry factor in the range of 10<jats:sup>\u22122<\/jats:sup>. This is the first example of CP\u2010NIR EL from a conjugated polymer. This work highlights the potential of TPA\u2010capped strategy for low bandgap copolymers for efficient NIR\u2010OLEDs and opens new perspectives in the use of conjugated polymers in NIR photonic applications.<\/jats:p>","DOI":"10.1002\/marc.202401110","type":"journal-article","created":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T11:37:26Z","timestamp":1741693046000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Near\u2010Infrared Electroluminescent Conjugated Copolymer: Triphenyalmine\u2010Functionalized Benzothiadiazole\u2010Thiophene System for Circularly Polarized OLEDs"],"prefix":"10.1002","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5260-512X","authenticated-orcid":false,"given":"Benedetta Maria","family":"Squeo","sequence":"first","affiliation":[{"name":"Consiglio Nazionale delle Ricerche Istituto di Scienze e Tecnologie Chimiche \u201cGiulio Natta\u201d (CNR\u2010SCITEC)  via A. 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