{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T14:06:57Z","timestamp":1790690817393,"version":"4.1.0"},"reference-count":80,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002809","name":"Generalitat de Catalunya","doi-asserted-by":"publisher","award":["2021\u2010SGR\u201000443"],"award-info":[{"award-number":["2021\u2010SGR\u201000443"]}],"id":[{"id":"10.13039\/501100002809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Organic phototransistors (OPTs) are appealing devices for the fabrication of low\u2010cost, tuneable and highly sensitive light detectors. This study investigates the potential of single\u2010component OPTs based on the non\u2010fullerene acceptor Y6 to detect near\u2010infrared (NIR) light. Y6 films are deposited via blade coating and subjected to thermal annealing between 200\u00b0C and 250\u00b0C. Morphological and structural characterization reveals a transition from amorphous to a polycrystalline phase above 200\u00b0C. Electrical measurements demonstrate enhanced electron mobility and reduced hysteresis in annealed devices. Under 840\u00a0nm illumination, amorphous films exhibit photoconductive behavior, while polycrystalline films show photogating\/photogain effects, resulting in a significantly higher photoresponsivity and faster transient response times. The highest photoresponsivity of 127 A\u00b7W\n                    <jats:sup>\u22121<\/jats:sup>\n                    and shot\u2010noise\u2010limited specific detectivity of 6\u00b710\n                    <jats:sup>12<\/jats:sup>\n                    Jones (6\u00b710\n                    <jats:sup>10<\/jats:sup>\n                    Jones under full noise analysis) are achieved in polycrystalline devices under low NIR light intensity (0.32 \u00b5W\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    ) at\n                    <jats:italic>\n                      V\n                      <jats:sub>DS<\/jats:sub>\n                    <\/jats:italic>\n                    \u00a0=\u00a0\n                    <jats:italic>\n                      V\n                      <jats:sub>GS<\/jats:sub>\n                    <\/jats:italic>\n                    \u00a0=\u00a010\u00a0V, associated with enhanced charge carrier mobility rather than enhanced free charge generation. The devices also exhibit high cycling stability under continuous measurements and long\u2010term shelf\u2010stability when encapsulated. These findings establish thermally annealed Y6 films as a viable single\u2010component material for efficient NIR photodetection.\n                  <\/jats:p>","DOI":"10.1002\/smll.75942","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T13:22:08Z","timestamp":1790688128000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Crystallinity Effects on Near\u2010Infrared Photoresponse in Y6\u2010Based Organic Phototransistors"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-0486-6277","authenticated-orcid":false,"given":"Llu\u00eds","family":"Casabona\u2010Cendra","sequence":"first","affiliation":[{"name":"Institut De Ci\u00e8ncia de Materials de Barcelona (ICMAB\u2010CSIC)  Cerdanyola del Vall\u00e8s 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