{"id":916,"date":"2021-09-16T20:03:24","date_gmt":"2021-09-16T12:03:24","guid":{"rendered":"http:\/\/polyhedra.cn\/zh\/?p=916"},"modified":"2023-09-10T21:04:06","modified_gmt":"2023-09-10T13:04:06","slug":"emerging-ultra-narrow-band-cyan-emitting-phosphor-for-white-leds-with-enhanced-color-rendition","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/emerging-ultra-narrow-band-cyan-emitting-phosphor-for-white-leds-with-enhanced-color-rendition\/","title":{"rendered":"Emerging ultra-narrow-band cyan-emitting phosphor for white LEDs with enhanced color rendition"},"content":{"rendered":"\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><em>Light Sci Appl<\/em>., <\/mark>8, 38 (2019).<\/strong> <a href=\"https:\/\/www.nature.com\/articles\/s41377-019-0148-8\">https:\/\/www.nature.com\/articles\/s41377-019-0148-8<\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/media.springernature.com\/lw685\/springer-static\/image\/art%3A10.1038%2Fs41377-019-0148-8\/MediaObjects\/41377_2019_148_Fig1_HTML.png?as=webp\" alt=\"\" style=\"width:396px;height:413px\" width=\"396\" height=\"413\"\/><\/figure>\n<\/div>\n\n\n<p>Phosphor-converted white LEDs rely on combining a blue-emitting InGaN chip with yellow and red-emitting luminescent materials. The discovery of cyan-emitting (470\u2013500\u2009nm) phosphors is a challenge to compensate for the spectral gap and produce full-spectrum white light. Na<sub>0.5<\/sub>K<sub>0.5<\/sub>Li<sub>3<\/sub>SiO<sub>4<\/sub>:Eu<sup>2+<\/sup>&nbsp;(NKLSO:Eu<sup>2+<\/sup>) phosphor was developed with impressive properties, providing cyan emission at 486\u2009nm with a narrow full width at half maximum (FWHM) of only 20.7\u2009nm, and good thermal stability with an integrated emission loss of only 7% at 150\u2009\u00b0C. The ultra-narrow-band cyan emission results from the high-symmetry cation sites, leading to almost ideal cubic coordination for UCr<sub>4<\/sub>C<sub>4<\/sub>-type compounds. NKLSO:Eu<sup>2+<\/sup>&nbsp;phosphor allows the valley between the blue and yellow emission peaks in the white LED device to be filled, and the color-rendering index can be enhanced from 86 to 95.2, suggesting great applications in full-spectrum white LEDs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Light Sci Appl., 8, 38 (2019). https:\/\/www.nature.com\/a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[69],"class_list":["post-916","post","type-post","status-publish","format-standard","hentry","category-lab_papers_2019","tag-69"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/916","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\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=916"}],"version-history":[{"count":5,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/916\/revisions"}],"predecessor-version":[{"id":2554,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/916\/revisions\/2554"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=916"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}