کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400240 | 1505911 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High efficiency and broadband blue-emitting NaCaBO3: Ce3+ phosphor for NUV light-emitting diodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
A blue-emitting phosphor, NaCaBO3: Ce3+, was synthesized by a solid-state reaction. The phosphor can be efficiently excited by near ultraviolet (NUV) light, and emits bright broadband blue light. The optimal Ce3+ concentration and its critical energy transfer distance were determined to be 0.01 and 38.0Â Ã
. The photoluminescence excitation (PLE), emission (PL) spectra, and decay curves were measured to analyze the crystallographic occupancy sites of Ce3+ in the NaCaBO3 hosts. The composition-optimized NaCaBO3: 0.01Ce3+ exhibited high quantum efficiency of 75%. The results indicate that the phosphor NaCaBO3: Ce3+ could be served as a potential blue-emitting phosphor candidate for NUV LED application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 149, May 2014, Pages 69-74
Journal: Journal of Luminescence - Volume 149, May 2014, Pages 69-74
نویسندگان
Xinguo Zhang, Jiahui Song, Chunyan Zhou, Liya Zhou, Menglian Gong,