{"id":577,"date":"2019-06-29T10:33:42","date_gmt":"2019-06-29T10:33:42","guid":{"rendered":"https:\/\/beta.research.ece.ncsu.edu\/osl\/?p=577"},"modified":"2019-06-29T10:33:42","modified_gmt":"2019-06-29T10:33:42","slug":"panchromatic-all%e2%80%90polymer-photodetector-with-tunable-polarization-sensitivity","status":"publish","type":"post","link":"https:\/\/research.ece.ncsu.edu\/osl\/2019\/06\/29\/panchromatic-all%e2%80%90polymer-photodetector-with-tunable-polarization-sensitivity\/","title":{"rendered":"Panchromatic All\u2010Polymer Photodetector with Tunable Polarization Sensitivity"},"content":{"rendered":"<p><strong>Abstract<\/strong>: In this report, a high-performance all-polymer organic photodetector that is sensitive to linearly polarized light throughout the visible spectrum is demonstrated. The active layer is a bulk heterojunction composed of an electron donor polymer PBnDT-FTAZ and acceptor polymer P(NDI2OD-T2) that have complementary spectral absorption resulting in efficient detection from 350 to 800 nm. The blend film exhibits good ductility with the ability to accommodate large strains of over 60% without fracture. This allows the film to undergo large uniaxial strain resulting in in-plane alignment of both polymers making the film optically anisotropic and intrinsically polarization sensitive. The films are characterized by UV\u2013vis spectroscopy and grazing incidence wide-angle X-ray scattering showing that both polymers have similar in-plane backbone alignment and maintain packing order after being strained. The films are integrated into devices and characterized under linear polarized light. The strain-oriented detectors have maximum photocurrent anisotropies of 1.4 under transverse polarized light while maintaining peak responsivities of 0.21 A W\u22121 and a 3 dB cutoff frequency of \u22481 kHz. The demonstrated performance is comparable to the current state of the art all-polymer photodetectors with the added capability of polarization sensitivity enabling new application opportunities.<\/p>\n<p><span class=\"author\">Sen, P.<\/span>,\u00a0<span class=\"author\">Yang, R.<\/span>,\u00a0<span class=\"author\">Rech, J. J.<\/span>,\u00a0<span class=\"author\">Feng, Y.<\/span>,\u00a0<span class=\"author\">Ho, C. H. Y.<\/span>,\u00a0<span class=\"author\">Huang, J.<\/span>,\u00a0<span class=\"author\">So, F.<\/span>,\u00a0<span class=\"author\">Kline, R. J.<\/span>,\u00a0<span class=\"author\">You, W.<\/span>,\u00a0<span class=\"author\">Kudenov, M. W.<\/span>,<span class=\"author\">O&#8217;Connor, B. T.<\/span>,\u00a0<i>Advanced Optical Materials<\/i>\u00a0<span class=\"pubYear\">2019<\/span>,\u00a0<span class=\"vol\">7<\/span>, 1801346.\u00a0<a class=\"linkBehavior\" href=\"https:\/\/doi.org\/10.1002\/adom.201801346\">https:\/\/doi.org\/10.1002\/adom.201801346<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: In this report, a high-performance all-polymer organic photodetector that is sensitive to linearly polarized light throughout the visible spectrum is demonstrated. The active layer&#8230;<\/p>\n","protected":false},"author":103,"featured_media":578,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-papers"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/users\/103"}],"replies":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/comments?post=577"}],"version-history":[{"count":1,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/577\/revisions"}],"predecessor-version":[{"id":579,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/577\/revisions\/579"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/media\/578"}],"wp:attachment":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/media?parent=577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/categories?post=577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/tags?post=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}