کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1233139 | 968804 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescence characterization of Ca10Na(PO4)7:Eu3+ red-emitting phosphor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoluminescence characterization of Ca10Na(PO4)7:Eu3+ red-emitting phosphor Photoluminescence characterization of Ca10Na(PO4)7:Eu3+ red-emitting phosphor](/preview/png/1233139.png)
چکیده انگلیسی
Eu3+-doped Ca10Na(PO4)7 phosphors were successfully synthesized by solid-state reaction techniques. Their structures and photoluminescence characteristics were carefully studied. An efficient red emission under near-ultraviolet excitation is observed. The maximum intensity of luminescence was observed at the Eu3+ concentration around 9 mol%. The quadrupole–quadrupole interaction between Eu3+ ions is the dominant mechanism for concentration quenching of fluorescence emission from Eu3+ ions in Ca10−xNa(PO4)7:xEu3+. Due to the excitation spectrum is well coupled with near UV light, Ca10−xNa(PO4)7:xEu3+ phosphors have potential application as red phosphors in near UV chip-based white light emitting diodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 78, Issue 2, February 2011, Pages 821–825
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 78, Issue 2, February 2011, Pages 821–825
نویسندگان
Xihua Dou, Weiren Zhao, Enhai Song, Guoxiong Zhou, Chunyu Yi, Mingkang Zhou,