{"id":2810,"date":"2023-09-21T12:21:46","date_gmt":"2023-09-21T04:21:46","guid":{"rendered":"http:\/\/ustb.cc\/zh\/?p=2810"},"modified":"2023-09-21T12:22:14","modified_gmt":"2023-09-21T04:22:14","slug":"electron-tunneling-charging-upon-sunlight-for-near-infrared-persistent-luminescence","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/electron-tunneling-charging-upon-sunlight-for-near-infrared-persistent-luminescence\/","title":{"rendered":"Electron Tunneling Charging upon Sunlight for Near-Infrared Persistent Luminescence"},"content":{"rendered":"\n<p><a href=\"javascript:void(0)\">LASER &amp; PHOTONICS REVIEWS<\/a>.08 February 2023.<a href=\"https:\/\/doi.org\/10.1002\/lpor.202200999\">https:\/\/doi.org\/10.1002\/lpor.202200999<\/a><\/p>\n\n\n\n<p>For the conventional persistent luminescence (PersL) charging processes, carriers are photo-pumped to the conduction band (CB) or high-energy excited states (HES) under short-wavelength UV or coherent near-infrared (NIR) laser excitation. Herein, electron tunneling charging behavior is reported in Cr<sup>3+<\/sup>, Sm<sup>3+<\/sup>&nbsp;co-doped NIR PersL magnetoplumbite SrGa<sub>12<\/sub>O<sub>19<\/sub>, which allows for efficient charging by incoherent visible light. First, the electrons are efficiently captured by the neighboring Ga<sup>II<\/sup>-O<sup>2\u2212<\/sup>&nbsp;electron\u2013hole trap centers via a tunneling process, and then these excited electrons are transferred to shallow traps via a persistently energetic optical pump. This work further optimizes the PersL performance via engineering the energy band through partial substitution&nbsp;of In<sup>3+<\/sup>&nbsp;for Ga<sup>3+<\/sup>. Consequently, tunneling charging occurring near the neighboring Cr<sup>3+<\/sup>-traps dimers enables Sr(Ga,In)<sub>12<\/sub>O<sub>19<\/sub>:Cr<sup>3+<\/sup>,Sm<sup>3+<\/sup>&nbsp;to display brighter NIR PersL (\u2248760&nbsp;nm, peak; \u2248100&nbsp;nm, FWHM) than gallate spinel under sunlight irradiation. This work provides insights into electron tunneling charging under low-energy excitation for NIR PersL, which may inspire more PersL explorations for practical applications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LASER &amp; PHOTONICS REVIEWS.08 February 2023.https:\/\/ [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[174],"tags":[],"class_list":["post-2810","post","type-post","status-publish","format-standard","hentry","category-lab_papers_2023"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/2810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=2810"}],"version-history":[{"count":2,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/2810\/revisions"}],"predecessor-version":[{"id":2812,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/2810\/revisions\/2812"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=2810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=2810"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=2810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}