{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T16:50:20Z","timestamp":1791910220691,"version":"4.3.4"},"reference-count":55,"publisher":"Wiley","issue":"57","license":[{"start":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:00:00Z","timestamp":1786492800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:00:00Z","timestamp":1786492800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002367","name":"Chinese Academy of Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002367","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Flexible electronic devices demand semiconducting materials that combine high charge transport performance, mechanical resilience, and compatibility with advanced patterning techniques. Conventional photolithography is incompatible with polymer semiconductors, and existing photo\u2010crosslinking strategies often compromise mobility due to backbone side reactions. Here we report an oxetane side\u2011chain engineering strategy that enables a diketopyrrolopyrrole (DPP)\u2011based random terpolymer,\n                    <jats:bold>PDPPSe\u2011oxe17<\/jats:bold>\n                    , to form robust crosslinked networks under mild UV irradiation with iodonium salt photoinitiators. Controlled incorporation of oxetane groups (17 mol%) preserves the electronic structure of the conjugated backbone while enabling rapid ring\u2011opening polymerization for high\u2011resolution photopatterning. The polymer exhibits a high hole mobility of 2.19 \u00b1 0.28 cm\n                    <jats:sup>2<\/jats:sup>\n                    V\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    s\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    , which slightly increases to 2.27 \u00b1 0.19 cm\n                    <jats:sup>2<\/jats:sup>\n                    V\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    s\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    after crosslinking\u2014representing one of the highest mobilities reported for photopatterned OFETs. The resulting 3D polyoxetane network imparts good mechanical robustness, allowing films to withstand 108% strain and retain \u223c85% and \u223c76% mobility at 30% and 50% strain. Even at 100% strain, the mobility remains \u223c1.4 \u00b1 0.12 cm\n                    <jats:sup>2<\/jats:sup>\n                    V\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    s\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    , whereas non\u2011crosslinked counterparts retain only \u223c3% of their initial mobility. This work establishes a generalizable molecular design principle for intrinsically photopatternable and stretchable polymer semiconductors.\n                  <\/jats:p>","DOI":"10.1002\/adma.74618","type":"journal-article","created":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T08:15:50Z","timestamp":1786522550000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Photopatternable and Stretchable Random Polymer Semiconductor via Oxetane Side\u2010Chain Engineering"],"prefix":"10.1002","volume":"38","author":[{"given":"Xinyi","family":"Luo","sequence":"first","affiliation":[{"name":"State Key Laboratory of Natural Product Chemistry Key Laboratory of Special Function Materials and Structure Design College of Chemistry and Chemical Engineering Lanzhou University  Lanzhou 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