Synthesis and photoluminescence properties of novel BASI4O6N2:EU2+ phosphor

被引：0

作者：

Fukumura, Kohei ^{[1
]}

Shibai, Koki ^{[1
]}

Hattori, Sayaka ^{[1
]}

Murai, Kei-Ichiro ^{[1
]}

Moriga, Toshihiro ^{[1
]}

机构：

[1] Tokushima Univ, Grad Sch Adv Technol & Sci, Dept Chem Sci & Technol, 2-1 Minami Josanjima, Tokushima 7708506, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2024年 / 38卷 / 12N13期

关键词：

Oxynitride; phosphor; Rietveld analysis; CRYSTAL-STRUCTURE; BA3SI6O12N2EU; REFINEMENT;

D O I：

10.1142/S0217979224400150

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using Eu2O3, BaCO3, Si3N4 and SiO2 as starting materials, we succeeded in synthesizing BaSi4O6N2:Eu2+ by firing the mixture at 1100(degrees)C for 2h in a reducing atmosphere (N-2(95%)-H-2(5%)). As a result, a single phase was obtained by setting the charge composition ratio to Si/Ba=6. When the Eu(2+ )activation amount was 1%, it showed a broad emission in the range of 400-600nm under the excitation light of ultraviolet rays at 320nm. This phosphor exhibited chromaticity coordinates of (x,y)=(0.258,0.297) under irradiation with ultraviolet rays at 320nm and is thought to be a promising phosphor for ultraviolet-excited white LEDs.

引用

页数：10

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