Ce3+/Pr3+: YAGG: A Long Persistent Phosphor Activated by Blue-Light

The requirement of using ultraviolet light to stimulate afterglow luminescence has seriously restricted indoors/outdoors applications of most persistent materials developed hitherto. Herein, efficient blue‐light‐activated Ce3+, Pr3+: YAGG phosphors, showing optimized long‐persistent luminescence las...

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Published in:Journal of the American Ceramic Society 2014-08, Vol.97 (8), p.2539-2545
Main Authors: Wang, Bo, Lin, Hang, Yu, Yunlong, Chen, Daqin, Zhang, Rui, Xu, Ju, Wang, Yuansheng
Format: Article
Language:English
Subjects:
Afterglows
Luminescence
Phosphors
Spectra
Three dimensional
Trapping
Tuning
Ultraviolet
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container_issue 8
container_start_page 2539
container_title Journal of the American Ceramic Society
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creator Wang, Bo
Lin, Hang
Yu, Yunlong
Chen, Daqin
Zhang, Rui
Xu, Ju
Wang, Yuansheng
description The requirement of using ultraviolet light to stimulate afterglow luminescence has seriously restricted indoors/outdoors applications of most persistent materials developed hitherto. Herein, efficient blue‐light‐activated Ce3+, Pr3+: YAGG phosphors, showing optimized long‐persistent luminescence lasting for 1 h, were prepared and investigated in detail with the aid of X‐ray diffraction refinement, steady‐state/persistent photoluminescence spectra, room/low‐temperature persistent decay curves, and three‐dimensional thermo‐luminescence spectra. Notably, the afterglow properties were found highly dependent on the Ga content which greatly alters both the host band gap energy and the Ce3+: 5d level structure and thus is beneficial to the electrons' photoionization and trapping processes. Moreover, Pr3+ additive was found not only prolonged the afterglow lifetime of Ce3+ through improving concentration of carriers captured at the trap, but also served as the red‐emissive centers for color tuning. The persistent energy transfer from Ce3+ to Pr3+ was experimentally demonstrated for the first time.
doi_str_mv 10.1111/jace.12967
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Am. Ceram. Soc</addtitle><date>2014-08</date><risdate>2014</risdate><volume>97</volume><issue>8</issue><spage>2539</spage><epage>2545</epage><pages>2539-2545</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><notes>Major Sci &amp; Tech Projects of Fujian - No. 2011HZ0001-2</notes><notes>National Natural Science Foundation of China - No. 11204301; No. 51202244; No. 51172231; No. 21271170; No. 11304312</notes><notes>ArticleID:JACE12967</notes><notes>Haixi Institute of CAS - No. SZD13001</notes><notes>istex:51E4F4725F2070CDC5A2A41E5C35BE0F6051879B</notes><notes>ark:/67375/WNG-BMXSPM13-S</notes><notes>ObjectType-Article-2</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-1</notes><notes>content type line 23</notes><abstract>The requirement of using ultraviolet light to stimulate afterglow luminescence has seriously restricted indoors/outdoors applications of most persistent materials developed hitherto. 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The persistent energy transfer from Ce3+ to Pr3+ was experimentally demonstrated for the first time.</abstract><pub>Blackwell Publishing Ltd</pub><doi>10.1111/jace.12967</doi><tpages>7</tpages></addata></record>
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subjects Afterglows
Luminescence
Phosphors
Spectra
Three dimensional
Trapping
Tuning
Ultraviolet
title Ce3+/Pr3+: YAGG: A Long Persistent Phosphor Activated by Blue-Light
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