Yellow-Emitting Y3Si6N11: Ce3+Phosphors for White Light-Emitting Diodes (LEDs)

被引：18

作者：

Liu, Lihong ^{[1
,2
,3
]}

Xie, Rong-Jun ^{[2
]}

Li, Wanyuan ^{[1
]}

Hirosaki, Naoto ^{[2
]}

Yamamoto, Yoshinobu ^{[2
]}

Sun, Xudong ^{[3
]}

机构：

[1] Chinese Acad Sci, Struct & Funct Integrat Ceram Grp, Div Funct Mat & Nanodevices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

[2] Natl Inst Mat Sci, Sialon Grp, Sialon Unit, Tsukuba, Ibaraki 3050044, Japan

[3] Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Sch Met & Mat, Shenyang 110004, Liaoning, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2013年 / 96卷 / 06期

基金：

中国国家自然科学基金;

关键词：

LUMINESCENCE PROPERTIES; CONVERSION PHOSPHORS; ALPHA-SIALON; PHOTOLUMINESCENCE; OXYNITRIDE; EARTH; CA; SR; BA;

D O I：

10.1111/jace.12357

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel Y3-xSi6N11: xCe3+ yellow phosphor was synthesized using the carbothermal reduction and nitridition method at 1550 degrees C for 16h in this letter. Photoluminescence spectra indicated that the phosphor showed broad excitation spectrum and had strong absorption in range of 350-450nm. It also gave a broad emission band (Full width at half maximum=153nm) centered at 575nm under 425-nm excitation. With increasing Ce3+ concentration, the strongest emission intensity was obtained at 5mol% Ce3+ doping amount and a systematic redshift was observed as the Ce3+ concentration increased. The results indicate that this novel yellow phosphor is a promising candidate for using in blue-chip-excited white light-emitting diodes (LEDs).

引用

页码：1688 / 1690

页数：3

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