Temperature dependent luminescence of yellow-emitting α-sialon: Eu2+ oxynitride phosphors for white light-emitting diodes

被引：0

作者：

Liu, Lihong ^{[1
,2
]}

Xie, Rong-Jun ^{[2
]}

Hirosaki, Naoto ^{[2
]}

Takeda, Takashi ^{[2
]}

Li, Jiguang ^{[1
]}

Sun, Xudong ^{[1
]}

机构：

[1] Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Liaoning 110004, China

[2] Nitride Particle Group, Nano Ceramics Center, National Institute for Materials Science, Ibaraki 305-0044, Japan

来源：

Journal of the American Ceramic Society | 2009年 / 92卷 / 11期

关键词：

Yellow-emitting α-sialon:Eu2+ phosphors have been reported as interesting down-conversion luminescent materials in white LEDs. In this work; the thermal quenching of α-sialon:Eu2+ with the compositions of Mval+(m/val+)Si12-(m+n)Al m+nOnN16-n (M=Ca; Mg; Lu) is studied by investigating the effects of chemical composition; activator concentration; and substitution cation on the temperature-dependent luminescence. The chemical composition of α-sialon:Eu2+ was varied in a wide range (0.5m2.0; 1n1.8). It shows that the m value significantly affects the thermal quenching of α-sialon; whereas the n value hardly does. This difference is ascribed to the obvious lattice expansion and the increase of absolute activator concentration as m increases. The thermal quenching increases with increasing the Eu2+ concentration; which is due to enhanced Stokes shift. The type of substitution cation also has an influence on thermal quenching. Among the substitution cations in this work; Lu-α-sialon:Eu2+ exhibits largest thermal quenching. Photoionization is considered as the mechanism for the thermal quenching of Lu-α-sialon: Eu2+. © 2009 The American Ceramic Society;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：2668 / 2673

共 50 条

[31] One-step synthesis of yellow-emitting carbogenic dots toward white light-emitting diodes
Qiao-Ling Chen
Cai-Feng Wang
Su Chen
Journal of Materials Science, 2013, 48 : 2352 - 2357
[32] One-step synthesis of yellow-emitting carbogenic dots toward white light-emitting diodes
Chen, Qiao-Ling
Wang, Cai-Feng
Chen, Su
JOURNAL OF MATERIALS SCIENCE, 2013, 48 (06) : 2352 - 2357
[33] Solvothermal Preparation of Yellow-Emitting CuInS2/ZnS Quantum Dots and Their Application to White Light-Emitting Diodes
Song, Woo-Seuk
Yang, Heesun
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2013, 13 (09) : 6459 - 6462
[34] Combustion synthesis and luminescence properties of yellow-emitting phosphors Ca2BO3Cl:Eu2+
Xia, Zhiguo
Liao, Libing
Zhang, Zepeng
Wang, Yafang
MATERIALS RESEARCH BULLETIN, 2012, 47 (02) : 405 - 408
[35] Yellow-Emitting Y3Si6N11: Ce3+Phosphors for White Light-Emitting Diodes (LEDs)
Liu, Lihong
Xie, Rong-Jun
Li, Wanyuan
Hirosaki, Naoto
Yamamoto, Yoshinobu
Sun, Xudong
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2013, 96 (06) : 1688 - 1690
[36] Thermally stable luminescence of KSrPO4:Eu2+ phosphor for white light UV light-emitting diodes
Tang, Yu-Sheng
Hu, Shu-Fen
Lin, Chun Che
Bagkar, Nitin C.
Liu, Ru-Shi
APPLIED PHYSICS LETTERS, 2007, 90 (15)
[37] Yellow-emitting Y3Si6N11: Ce3+ phosphors for white light-emitting diodes (LEDs)
Xie, R.-J. (XIE.Rong-Jun@nims.go.jp), 1688, Blackwell Publishing Inc., Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany (96):
[38] Super broadband reddish emitting glass with Eu2+ doped for warm-white light-emitting diodes
Zijun Liu
Yang Yu
Nengli Dai
Qiaoqiao Chen
Luyun Yang
Jinyan Li
Yanbo Qiao
Applied Physics A, 2012, 108 : 777 - 781
[39] Luminescence Properties of Eu2+-Doped Green-Emitting Sr-Sialon Phosphor and Its Application to White Light-Emitting Diodes
Fukuda, Yumi
Ishida, Kunio
Mitsuishi, Iwao
Nunoue, Shinya
APPLIED PHYSICS EXPRESS, 2009, 2 (01) : 0124011 - 0124013
[40] Yellow-Emitting Sr9Sc(PO4)7:Eu2+, Mn2+ phosphor with energy transfer for potential application in white light-emitting diodes
Zhang, Jiahua (zhangjh@ciomp.ac.cn), 1600, Wiley-VCH Verlag (2014):

← 1 2 3 4 5 →