کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5400994 1505924 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface modification of Y3Al5O12:Ce3+ phosphor by hydrofluoric acid wet etching
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Surface modification of Y3Al5O12:Ce3+ phosphor by hydrofluoric acid wet etching
چکیده انگلیسی

The surface of Y3Al5O12:Ce3+ phosphor prepared by solid-state reaction was modified by hydrofluoric acid wet etching. The SEM pictures show that the edge-angles-rich surface of the phosphor particles becomes smooth and the XRD spectra show that the surface crystallinity is improved after modification for more than 3 h. Consequently, the photoluminescence emission from phosphor particles with smooth surface presents a higher quantum yield (increased by 5.5%) than that without modification, and a lower backscattering light by the smoothed phosphor particles is also found, which suggests better surface characteristics of light absorption, transparency and crystallinity.

► HF wet etching way is introduced to modify the YAG phosphor surface for the first time. ► The surface with riched edge angles has become smooth. ► The photoluminescence emission intensity is increased by 5.5%. ► The backscattering light intensity is obviously decreased. ► The wet etching method with HF is appropriate for mass process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 136, April 2013, Pages 351-354
نویسندگان
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