کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5402833 | 1392743 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescence investigation of red phosphors Ca0.54Sr0.34â1.5xEu0.08Smx(MoO4)y (WO4)1ây for UV-white LED device
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Luminescence investigation of red phosphors Ca0.54Sr0.34â1.5xEu0.08Smx(MoO4)y (WO4)1ây for UV-white LED device Luminescence investigation of red phosphors Ca0.54Sr0.34â1.5xEu0.08Smx(MoO4)y (WO4)1ây for UV-white LED device](/preview/png/5402833.png)
چکیده انگلیسی
Ca0.54Sr0.34â1.5xEu0.08Smx(MoO4)y (WO4)1ây red phosphors were prepared by solid-state reaction using Na+ as a charge compensator for light-emitting diodes (LED). The effects of Na+ concentration, synthesis temperature, reaction time and Eu3+ concentration were studied for the properties of luminescence and crystal structure of red phosphors. The results show that the optimum reaction condition is 6%, 900 °C, 2 h and 8%. The photoluminescence spectra show that red phosphors are effectively excited at 616 nm by 292, 395 and 465 nm. The wavelengths of 465 nm nicely match the widely applied emission wavelengths of blue LED chips.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 129, Issue 6, June 2009, Pages 585-588
Journal: Journal of Luminescence - Volume 129, Issue 6, June 2009, Pages 585-588
نویسندگان
Fa-bin Cao, Yan-wen Tian, Yong-jie Chen, Lin-jiu Xiao, Qian Wu,