{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T15:24:18Z","timestamp":1787325858252,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"47","license":[{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12164052"],"award-info":[{"award-number":["12164052"]}],"id":[{"id":"10.13039\/501100001809","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":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Organic semiconductors offer compelling advantages for facile and scalable optoelectronic integration, yet their limited absorption range constrains their applicability in near\u2010infrared (NIR) photonic technologies. Here, we report an organic upconversion device (OUD) that effectively harnesses the inherently weak but spectrally broad charge\u2010transfer (CT) absorption to convert NIR radiation into visible light. A resonant optical microcavity is strategically engineered to selectively amplify the CT absorption band and to establish optical isolation between the organic photodetector (PD) and the organic light\u2010emitting diode, thereby enhancing light\u2010coupling efficiency while suppressing reabsorption losses. The device achieves an impressive P\u2013P conversion efficiency of 16.9% under 980\u00a0nm NIR illumination, despite the constituent materials lacking intrinsic absorption at this wavelength. Moreover, by simply adjusting the cavity thickness, an efficient OUD operating at a detection wavelength of 1550\u00a0nm is successfully developed for the first time. In addition, single\u2010detector NIR imaging is demonstrated using large\u2010area devices equipped with dot\u2010matrix connecting electrodes (DMCEs) without needing complex readout integrated circuits (ROICs) to scan signals. This work unveils the potential of intermolecular CT absorption as a versatile platform for applications in NIR sensing, upconversion, and imaging.<\/jats:p>","DOI":"10.1002\/adma.74128","type":"journal-article","created":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T11:00:59Z","timestamp":1784113259000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Resonant Cavity\u2010Enhanced Intermolecular Charge\u2010Transfer Absorption for Near\u2010Infrared Photon Upconversion and Single\u2010Detector Imaging"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-8914-1992","authenticated-orcid":false,"given":"Shou\u2010Jie","family":"He","sequence":"first","affiliation":[{"name":"Center For Optoelectronics Engineering Research School of Physics and Astronomy Yunnan University  Kunming China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin\u2010Ya","family":"Yan","sequence":"additional","affiliation":[{"name":"Center For Optoelectronics Engineering Research School of Physics and Astronomy Yunnan University  Kunming China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia\u2010Xiu","family":"Man","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information Technology Yunnan Normal University  Kunming China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deng\u2010Ke","family":"Wang","sequence":"additional","affiliation":[{"name":"Center For Optoelectronics Engineering Research School of Physics and Astronomy Yunnan University  Kunming China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zheng\u2010Hong","family":"Lu","sequence":"additional","affiliation":[{"name":"Center For Optoelectronics Engineering Research School of Physics and Astronomy Yunnan University  Kunming China"},{"name":"Department of Materials Science and Engineering University of Toronto  Toronto 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