کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5437406 1398173 2017 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel rare-earth free red long-persistent phosphor: Mg2GeO4:Mn4+
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
A novel rare-earth free red long-persistent phosphor: Mg2GeO4:Mn4+
چکیده انگلیسی
Red-emitting long-persistent phosphor Mg2GeO4: Mn4+ was prepared by a high-temperature solid-state reaction. The photoluminescence and afterglow properties of Mg2GeO4: xMn4+ phosphors were studied systematically. Furthermore, to improve the afterglow performance, co-doped Re3+ (Re = Pr, Er, Nd and Yb) ions into Mg2GeO4: 0.001Mn4+ separately to adjust the trap depth or increase the trap density was performed. The duration of Mg2GeO4: 0.001Mn4+ can be observed 30 min by naked eyes, and the initial brightness and afterglow duration are significantly improved after Re3+ ions are doped respectively. Especially, the afterglow emission of Mg2GeO4: Mn4+, Yb3+ can last for 2 h. This investigation shows up a rare Mn4+-doped long-afterglow phenomenon, and provides a new and efficient red afterglow material for potential application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 17, 1 December 2017, Pages 15141-15145
نویسندگان
, , , , , , ,