کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5025216 | 1470585 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of various additives on fluorescent intensity of GeO2·SiO2 phosphor
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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: Effect of various additives on fluorescent intensity of GeO2·SiO2 phosphor Effect of various additives on fluorescent intensity of GeO2·SiO2 phosphor](/preview/png/5025216.png)
چکیده انگلیسی
In this study, the effect of the molar ratio between the GeO2 and SiO2 components of the violet-blue GeO2·SiO2 phosphor glass on its photoluminescence (PL) activity has been examined. The strongest PL intensity was observed for the (GeO2)20(SiO2)80 compound, and its room-temperature internal quantum efficiency estimated at an excitation wavelength of 250 nm was 53%. This value was further increased by the addition of Al and Zr elements to the (GeO2)20(SiO2)80 phosphor, and the internal quantum efficiencies of the resulting (GeO2)20(SiO2)80 + 2000 ppm Zr and (GeO2)20(SiO2)80 + 1000 ppm Al systems measured at room temperature were equal to 66 and 70%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 142, August 2017, Pages 54-60
Journal: Optik - International Journal for Light and Electron Optics - Volume 142, August 2017, Pages 54-60
نویسندگان
Susumu Nakayama, Taro Asahi, Yasushi Omura, Hisami Tsuji, Natsumi Okubo,