کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1491978 | 992364 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and photoluminescence of new phosphors M2(Mg, Zn)Si2O7:Mn2+ (M = Ca, Sr, Ba)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and photoluminescence of new phosphors M2(Mg, Zn)Si2O7:Mn2+ (M = Ca, Sr, Ba) Synthesis and photoluminescence of new phosphors M2(Mg, Zn)Si2O7:Mn2+ (M = Ca, Sr, Ba)](/preview/png/1491978.png)
چکیده انگلیسی
New phosphors M2(Mg, Zn)Si2O7:Mn2+ (M = Ca, Sr, Ba) were prepared by sol–gel process, and their luminescent properties in ultraviolet and vacuum ultraviolet region were investigated. The results showed that the (Ca, Sr, Ba)2MgSi2O7:Mn2+ samples did not emit any visible light; the Sr2ZnSi2O7:Mn2+ and Ca2ZnSi2O7:Mn2+ samples showed green light. The Ba2ZnSi2O7:Mn2+ sample mainly showed green light under 254 nm excitation and red light under 147 nm excitation. The different emission was due to the Mn2+ ions occupied different sites, which were excited selectively. Among the three phosphors Sr2ZnSi2O7:Mn2+ showed the highest green emission intensity, and its decay time was shorter than that of Zn2SiO4:Mn2+ under 147 nm excitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 42, Issue 12, 4 December 2007, Pages 2219–2223
Journal: Materials Research Bulletin - Volume 42, Issue 12, 4 December 2007, Pages 2219–2223
نویسندگان
Yan Hao, Yu-Hua Wang,