{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T16:09:30Z","timestamp":1761581370646,"version":"3.41.2"},"reference-count":31,"publisher":"AIP Publishing","issue":"22","funder":[{"DOI":"10.13039\/501100000266","name":"Engineering and Physical Sciences Research Council","doi-asserted-by":"publisher","award":["EP\/M001024\/1"],"award-info":[{"award-number":["EP\/M001024\/1"]}],"id":[{"id":"10.13039\/501100000266","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,11,30]]},"abstract":"<jats:p>We report on highly efficient organic phototransistors (OPTs) based on thin-film\/single-crystal planar bilayer junctions between 5,6,11,12-tetraphenyltetracene (rubrene) and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM). The OPTs show good field-effect characteristics in the dark, with high hole-mobility (4\u20135\u2009cm2\u2009V\u22121\u2009s\u22121), low-contact resistance (20\u2009k\u03a9\u2009cm), and low-operating voltage (\u22645\u2009V). Excellent sensing capabilities allow for light detection in the 400\u2013750\u2009nm range, with photocurrent\/dark current ratio as high as 4\u2009\u00d7\u2009104, responsivity on the order of 20\u2009AW\u22121 at 27\u2009\u03bcW\u2009cm\u22122, and an external quantum efficiency of 52\u2009000%. Photocurrent generation is attributed to enhanced electron and hole transfer at the interface between rubrene and PC61BM, and fast response times are observed as a consequence of the high-mobility of the interfaces. The optoelectronic properties exhibited in these OPTs outperform those typically provided by a-Si based devices, enabling future applications where multifunctionality in a single-device is sought.<\/jats:p>","DOI":"10.1063\/1.4937005","type":"journal-article","created":{"date-parts":[[2015,12,2]],"date-time":"2015-12-02T18:00:28Z","timestamp":1449079228000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":25,"title":["Ultrasensitive organic phototransistors with multispectral response based on thin-film\/single-crystal bilayer structures"],"prefix":"10.1063","volume":"107","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0058-8652","authenticated-orcid":false,"given":"R. M.","family":"Pinto","sequence":"first","affiliation":[{"name":"INESC MN and IN 1 , Rua Alves Redol 9, 1000-029 Lisboa, Portugal"},{"name":"Instituto Superior T\u00e9cnico 2 CQFM, , Av. Rovisco Pais, 1049-001 Lisboa, Portugal"}]},{"given":"W.","family":"Gouveia","sequence":"additional","affiliation":[{"name":"INESC MN and IN 1 , Rua Alves Redol 9, 1000-029 Lisboa, Portugal"}]},{"given":"A. I. S.","family":"Neves","sequence":"additional","affiliation":[{"name":"INESC MN and IN 1 , Rua Alves Redol 9, 1000-029 Lisboa, Portugal"},{"name":"University of Exeter 3 College of Engineering, Mathematics and Physical Sciences, , EX4 4QL Exeter, United Kingdom"}]},{"given":"H.","family":"Alves","sequence":"additional","affiliation":[{"name":"INESC MN and IN 1 , Rua Alves Redol 9, 1000-029 Lisboa, Portugal"},{"name":"Universidade de Aveiro 4 CICECO, Physics Department, , 3810-193 Aveiro, Portugal"}]}],"member":"317","published-online":{"date-parts":[[2015,12,2]]},"reference":[{"key":"2023061718484334900_c1","doi-asserted-by":"publisher","first-page":"2097","DOI":"10.1002\/adma.200401017","volume":"16","year":"2004","journal-title":"Adv. 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