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Mn\u7eff\u8272\u7c89\uff09\u7684\u72ec\u7279\u7684\u8367\u5149\u7279\u6027\uff0c\u8bbe\u8ba1\u4e86\u4e09\u79cd\u7c7b\u578b\u7684\u56fe\u6848\u8272\u5f69\u6216\u56fe\u6848\u53ef\u52a8\u6001\u53d8\u5316\u7684\u201c\u873b\u8713\u8377\u82b1\u201d\u56fe\u6848\uff0c\u8fd9\u4e9b\u56fe\u6848\u4e0d\u4f46\u5bf9\u6fc0\u53d1\u5149\u7684\u529f\u7387\u548c\u6ce2\u957f\u5177\u6709\u654f\u611f\u7684\u8272\u5f69\u54cd\u5e94\uff0c\u91cd\u8981\u5730\uff0c\u5173\u6389\u6fc0\u53d1\u5149\u6e90\u4e4b\u540e\uff0c\u8272\u5f69\u548c\u56fe\u6848\u5728\u65f6\u95f4\u57df\u4e0a\u5448\u73b0\u51fa\u4e86\u88f8\u773c\u53ef\u6e05\u6670\u8bc6\u522b\u7684\u8fde\u7eed\u8272\u5f69\u6216\u56fe\u6848\u7684\u52a8\u6001\u53d8\u5316\uff0c\u5c24\u5176\uff0c\u6d88\u5931\u7684\u56fe\u6848\u80fd\u88ab\u7ea2\u5916\u5149\u591a\u6b21\u5524\u9192\uff08Fig.3\uff09\u3002\u4e0e\u4e4b\u524d\u62a5\u9053\u7684\u591a\u6a21\u53d1\u5149\u6750\u6599\u76f8\u6bd4\uff0c\u6df7\u5408\u7269\u4f59\u8f89\u7c89\u4f5c\u4e3a\u9632\u4f2a\u6cb9\u58a8\u5177\u6709\u4e24\u4e2a\u4f18\u52bf\u3002\u4e00\u662f\u56fe\u6848\u5728365 nm\u505c\u6b62\u6fc0\u53d1\u540e\uff0c\u56fe\u6848\u8868\u73b0\u51fa\u6e10\u53d8\u7684\u4f59\u8f89\u8367\u5149\u989c\u8272\u548c\u6e10\u53d8\u7684\u56fe\u6848\u3002\u53e6\u4e00\u79cd\u662f\u591a\u6a21\uff08UCL\u548cPersL,\u00a0PSL, PSPL\uff09\u53d1\u5149\u56fe\u6848\u7684\u5149\u5b66\u4fe1\u606f\u4f9d\u8d56\u4e8e\u7167\u5c04\u5149\u6e90\uff08\u5305\u62ecNIR\u548cUV\uff09\u7684\u987a\u5e8f\uff0c\u4e3a\u9632\u4f2a\u63d0\u4f9b\u4e86\u9690\u85cf\u7684\u5b89\u5168\u7279\u5f81\u3002\u8fd9\u91cc\u7684ZGGO: Cr\u3001Yb\u3001Er \u548c ZLGO: Mn \u4f59\u8f89\u7c89\u7684\u6df7\u5408\u7269\u5370\u82b1\u9632\u4f2a\u6280\u672f\u5177\u6709\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u597d\u3001\u65e0\u8272\u79fb\u7b49\u4f18\u70b9\uff0c\u4e14\u8bc6\u522b\u552f\u4e00\u3001\u6210\u672c\u4f4e\u5ec9\u548c\u5e94\u7528\u7b80\u5355\u7b49\u7279\u70b9\uff0c\u4e3a\u8bbe\u8ba1\u548c\u5236\u5907\u5148\u8fdb\u7684\u9632\u4f2a\u4f59\u8f89\u6750\u6599\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u3002<\/p>\n Fig. 1 <\/b><\/strong>\u00a0Quintuple luminescence modes\u00a0(PL, PersL, PSL, PSPL and UCL)\u00a0of ZGGO:Cr,Yb,Er\u00a0phosphors.\u00a0(a) Calcination\u00a0temperature-dependent PL excitation spectra monitoring at 701 nm and PL emission spectra under 365 nm light excitation. (b)\u00a0PersL decay curves monitored at 701\u00a0nm after irradiated by a 365\u00a0nm UV lamp for 5\u00a0min. The inset shows the PersL emission spectrum recorded at 7 s decay. (c) UCL and UCL+PSL spectra of ZGGO:Cr,Yb,Er-1300 phosphor\u00a0upon 808 nm (1 W) and 980 nm (0.7 W) laser diodes irradiation. For the UCL measurements, the sample was fresh, while for the UCL+PSL measurements, the sample was pre-irradiated by a 365 nm UV lamp for 5 min. (d)\u00a0Repeated PSL and PSPL emission signals of a decaying ZGGO:Cr,Yb,Er-1300 sample monitored at 701\u00a0nm. During the decay, the sample was periodically (1 min interval) irradiated by a 980 nm laser diode (at 0.7 W) for 40 s. (e) Digital PL, PersL, UCL+PSL and PSPL images of ZGGO:Cr,Yb,Er-1300\u00a0phosphor\u00a0under and after 365 nm, 808 nm and 980 nm irradiation. Before the UCL+PSL imaging, the samples were pre-irradiated by a 365 nm UV lamp and decayed to be invisible to the naked eye. The imaging parameter is manual\/ISO 3200\/4 s<\/p>\n Fig. 2<\/strong> \u00a0<\/b><\/strong>Schematic illustration of multi-mode luminescence and anti-counterfeiting design of red ZGGO:Cr,Yb,Er and green ZLGO:Mn persistent\u00a0phosphors. (a) Schematic diagram; (b) The variable emission colours, multi-mode luminescence (UCL, PL, PersL, PSL and PSPL), and the dynamic evolution of the PersL emission brightness and colours under different excitation conditions for multi-level anti-counterfeiting applications.<\/p>\n Fig.<\/b><\/strong>\u00a03<\/b><\/strong>\u00a0<\/b><\/strong>\u00a0<\/b><\/strong>Digital images of a quintuple-mode (PL,\u00a0PersL,\u00a0UCL, PSL and PSPL\u00a0modes) \u2018dragonfly-on-lotus\u2019 pattern printed using\u00a0ZLGO:Mn-900 and ZGGO:Cr,Yb,Er-1300 phosphors (dragonfly) and ZGGO:Cr,Yb,Er-1300 phosphor (lotus). (a)\u00a0The design\u00a0of the \u2018dragonfly-on-lotus\u2019\u00a0pattern.\u00a0(b\u2013f) PL and PersL images obtained under and after a 365 nm UV lamp irradiation (for 5 min).\u00a0(g,h) UCL+PSL and PSPL images under and after an 808 nm NIR laser diode irradiation (at 0.6 W). (i,j)\u00a0UCL+PSL and PSPL images under and after a 980 nm NIR laser diode irradiation (0.6 W). (k) UCL image of a fresh pattern (without UV pre-irradiation) under an 808 nm laser diode irradiation (at 1 W). (l) UCL image of a fresh pattern under a 980 nm laser diode irradiation (at 0.6 W).\u00a0The UCL+PSL imaging was conducted after both the dragonfly and the lotus were invisible to the naked eye. The imaging parameter is manual\/ISO 3200\/4 s for (b-g,i,k,l) and manual\/ISO 3200\/15 s for (h,j), respectively.<\/p>\n Quintuple-mode dynamic anti-counterfeiting using multi-mode persistent phosphors.<\/b><\/strong><\/p>\n Dangli Gao, Jie Gao, Feng Gao, Qingqing Kuang, Yong Pan, Yafei Chen, Zhengwei Pan<\/p>\n First published: 03 November 2021Journal of Materials Chemistry C, 2021, https:\/\/doi.org\/10.1039\/D1TC04568G<\/b><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" \u8fd1\u5e74\u6765\uff0c\u968f\u7740\u5047\u5192\u4f2a\u52a3\u4ea7\u54c1\u548c\u4fe1\u606f\u6cc4\u9732\u6848\u4ef6\u65e5\u76ca\u589e\u591a\uff0c\u4ea7\u54c1\u9632\u4f2a\u4e0e\u4fe1\u606f\u4fdd\u62a4\u5df2\u7ecf\u6210\u4e3a\u4f17\u591a\u884c\u4e1a\u5bc6\u5207\u5173\u6ce8\u7684\u70ed\u70b9\u79d1\u5b66\u95ee\u9898\u3002\u636e\u7edf\u8ba1\uff0c2016\u5e74\u5047\u5192\u4f2a\u52a3\u5546\u54c1\u7684\u9500\u552e\u989d\u9ad8\u8fbe1070\u4ebf\u7f8e…<\/p>\n","protected":false},"author":11454,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-230060","post","type-post","status-publish","format-standard","hentry","category-jiedu"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/230060"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/11454"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=230060"}],"version-history":[{"count":1,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/230060\/revisions"}],"predecessor-version":[{"id":230065,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/230060\/revisions\/230065"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=230060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=230060"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=230060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-8-3.png\")
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