کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10226623 | 1701282 | 2019 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of atmosphere and temperature on luminescence property of YAG:Ce synthesized by co-precipitation method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of atmosphere and temperature on luminescence property of YAG:Ce synthesized by co-precipitation method Effects of atmosphere and temperature on luminescence property of YAG:Ce synthesized by co-precipitation method](/preview/png/10226623.png)
چکیده انگلیسی
Ce-doped yttrium aluminum garnet (YAG)-based crystal powders were synthesized using a co-precipitation method. The effects of the sintering atmosphere and temperature on the luminescence property were investigated using the photoluminescence (PL) and cathodoluminescence (CL) spectroscopy along with X-ray diffraction (XRD) analysis and X-ray photoelectron spectroscopy (XPS). The PL and CL results showed that YAG:Ce samples sintered in an inert atmosphere at high temperatures had a higher luminescence intensity around 550ânm related to Ce3+ in the YAG host. The XRD results showed that high temperatures and inert atmosphere conditions were favorable to the growth of the YAG crystal. When the YAG:Ce samples were sintered in an inert atmosphere, the conversion of Ce3+ to Ce4+ could be suppressed effectively. Meanwhile, the CL intensity around 370ânm related to the antisite defects (AD) in the YAG lattice decreased significantly. Therefore, the YAG:Ce samples sintered in an inert atmosphere at high temperatures with a good crystal structure, high Ce3+ concentrations, and less AD had better luminescence properties. YAG:Ce samples synthesized using a co-precipitation method with excellent luminescence properties can be used as fast and efficient scintillation materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 176, January 2019, Pages 241-245
Journal: Optik - Volume 176, January 2019, Pages 241-245
نویسندگان
Zhou You, Kun Yue, Jialei Zhang, Pan Ke, Danyu Gu, Qiang Guo, Wenyun Luo,