{"id":880,"date":"2021-09-16T19:41:05","date_gmt":"2021-09-16T11:41:05","guid":{"rendered":"http:\/\/polyhedra.cn\/zh\/?p=880"},"modified":"2023-09-10T20:20:52","modified_gmt":"2023-09-10T12:20:52","slug":"controlling-cr3-cr4-concentration-in-single-phase-host-toward-tailored-super-broad-near-infrared-luminescence-for-multifunctional-applications","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/controlling-cr3-cr4-concentration-in-single-phase-host-toward-tailored-super-broad-near-infrared-luminescence-for-multifunctional-applications\/","title":{"rendered":"Controlling Cr3+\/Cr4+ concentration in single-phase host toward tailored super-broad near-infrared luminescence for multifunctional applications"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><a href=\"https:\/\/doi.org\/10.1016\/j.mtchem.2021.100555\" data-type=\"URL\" data-id=\"https:\/\/doi.org\/10.1016\/j.mtchem.2021.100555\">Mater. Chem. Today,2021,22,100555<\/a>.<a rel=\"noreferrer noopener\" href=\"https:\/\/doi.org\/10.1016\/j.mtchem.2021.100555\" target=\"_blank\">https:\/\/doi.org\/10.1016\/j.mtchem.2021.100555<\/a><\/p>\n<\/blockquote>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/polyhedra.cn\/zh\/wp-content\/uploads\/2021\/09\/\u5fae\u4fe1\u56fe\u7247_20210916193810.png\" alt=\"\" class=\"wp-image-882\" style=\"width:417px;height:207px\" width=\"417\" height=\"207\" srcset=\"http:\/\/ustb.cc\/zh\/wp-content\/uploads\/2021\/09\/\u5fae\u4fe1\u56fe\u7247_20210916193810.png 993w, http:\/\/ustb.cc\/zh\/wp-content\/uploads\/2021\/09\/\u5fae\u4fe1\u56fe\u7247_20210916193810-300x149.png 300w, http:\/\/ustb.cc\/zh\/wp-content\/uploads\/2021\/09\/\u5fae\u4fe1\u56fe\u7247_20210916193810-768x381.png 768w\" sizes=\"auto, (max-width: 417px) 100vw, 417px\" \/><\/figure>\n<\/div>\n\n\n<p>Full control on the valence of the active ions in solids to improve properties is the central topic of chemistry and materials. Cr3+ and Cr4+ ions generally emit wavelength-different near-infrared (NIR) light. Here, we have developed a chromium valence-controllable single-phase phosphor, Mg2GeO4:Cr3+,Cr4+ to achieve super-broad NIR luminescence. High Li+ content charge compensators can stabilize Cr3+ while high temperature sintering tends to facilitate the formation of Cr4+. Through fine adjusting the synthesis conditions, pure Cr3+ or Cr4+ luminescence can be obtained with peak emission locating at 935 and 1190 nm, respectively. Super-broad-band dual emission spanning from 650 to 1600 nm is realized via fully controlling the concentration ratio of Cr3+ to Cr4+ in single host. By measuring the transmission spectra of several foodstuffs illuminated by our phosphors, nondestructive analysis in food safety area can be realized. This study provides a new strategy for exploiting super-broad-band NIR luminescent materials.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mater. Chem. Today,2021,22,100555.https:\/\/doi.org\/10.10 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,14],"tags":[],"class_list":["post-880","post","type-post","status-publish","format-standard","hentry","category-lab_papers_2021","category-lab_papers"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/880","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\/12"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=880"}],"version-history":[{"count":5,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/880\/revisions"}],"predecessor-version":[{"id":2511,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/880\/revisions\/2511"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=880"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}