کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8163026 | 1525213 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and luminescence properties of Sm3+-doped La2WyMo2âyO9 orange-red phosphors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and luminescence properties of Sm3+-doped La2WyMo2âyO9 orange-red phosphors Synthesis and luminescence properties of Sm3+-doped La2WyMo2âyO9 orange-red phosphors](/preview/png/8163026.png)
چکیده انگلیسی
La2WyMo2âyO9 phosphors activated with the trivalent rare-earth Sm3+ were synthesized via a traditional solid-state reaction, their structure and luminescence properties were investigated by using X-ray diffractometer and fluorescence spectrophotometer. There were three emission peaks centered at 563, 599, and 646Â nm corresponding to the 4G5/2â6H5/2, 4G5/2â6H7/2, 4G5/2â6H9/2 transitions of Sm3+ under the 402Â nm ultraviolet excitation. Investigation on Sm3+ concentration-dependent emission spectra indicated that La1.97WMoO9:3% Sm3+ phosphor exhibited the strongest orange-red emission with a CIE value of (0.5425, 0.4541). Therefore, it is considered to be a new promising orange-red emitting phosphor for white light emitting diode (LED) application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 433, 15 January 2014, Pages 133-137
Journal: Physica B: Condensed Matter - Volume 433, 15 January 2014, Pages 133-137
نویسندگان
Yaomin Deng, Shuangping Yi, Jun Huang, Weiren Zhao, Jieqiang Xian,