Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application

被引：7

作者：

Yu, Hong Jeong ^{[1
]}

Chung, Wonkeun ^{[1
]}

Park, Sun Hee ^{[1
]}

Kim, Jihyun ^{[1
]}

Kim, Sung Hyun ^{[1
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, Seoul 136701, South Korea

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 326卷 / 01期

关键词：

Doping; Hydrothermal crystal growth; Rare earth compounds; Phosphors; Light emitting diodes; WHITE-LIGHT; LUMINESCENCE; EU2+;

D O I：

10.1016/j.jcrysgro.2011.01.056

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Alkali earth selenide phosphor. SrSe:Eu2+ and Sr1-xZnxSe:Eu2+, was prepared using a solid-state chemical reaction method. The synthesized phosphor displayed a broad excitation band, which is suitable for blue or near UV LED applications and emits green light (563 nm). Zn2+ substitution for Sr2+ greatly enhances the green emission of the phosphors. The samples were also excited with various wavelength emitting diodes (410, 425, and 455 nm) to assess their potential use as phosphors for white LED applications. The LED fabricated with the synthesized phosphor produced white light using blue LED with a CIE-1931 coordinate, T-c and R-a of (0.3199, 0.2777) 6499 K and 49.7, respectively. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：77 / 80

页数：4

共 12 条

[1] Energy-transfer pumping of semiconductor nanocrystals using an epitaxial quantum well
Achermann, M
Petruska, MA
Kos, S
Smith, DL
Koleske, DD
Klimov, VI
[J]. NATURE, 2004, 429 (6992) : 642 - 646
[2] BLASSE G, 1969, PHILIPS RES REP, V24, P131
[3] A THEORY OF SENSITIZED LUMINESCENCE IN SOLIDS
DEXTER, DL
[J]. JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (05) : 836 - 850
[4] Planar polymer light-emitting electrochemical cells with extremely large interelectrode spacing
Gao, J
Dane, J
[J]. APPLIED PHYSICS LETTERS, 2003, 83 (15) : 3027 - 3029
[5] White light from InGaN/conjugated polymer hybrid light-emitting diodes
Hide, F
Kozodoy, P
DenBaars, SP
Heeger, AJ
[J]. APPLIED PHYSICS LETTERS, 1997, 70 (20) : 2664 - 2666
[6] Alkali earth sulfide phosphors doped with Eu2+ and Ce3+ for LEDs
Jia, Dongdong
Wang, Xiao-jun
[J]. OPTICAL MATERIALS, 2007, 30 (03) : 375 - 379
[7] Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode
Kim, Yong-Kyu
Cho, Dong-Hee
Jeong, Yong-Kwang
Nah, Min-Kook
Kim, Kwang-Bok
Kang, Jun-Gill
[J]. MATERIALS RESEARCH BULLETIN, 2010, 45 (08) : 905 - 909
[8] Nakamura S., 1997, BLUE LASER DIODE GAN
[9] White light generation using CdSe/ZnS core-shell nanocrystals hybridized with InGaN/GaN light emitting diodes
Nizamoglu, S.
Ozel, T.
Sari, E.
Demir, H. V.
[J]. NANOTECHNOLOGY, 2007, 18 (06)
[10] Preparation and fluorescence properties of fluoroaluminate glasses containing Eu2+ ions
Qiu, JR
Miura, K
Sugimoto, N
Hirao, K
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1997, 213 : 266 - 270

← 1 2 →