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Application of Ba2+·Mg2+ Co-doped Sr2SiO4: Eu yellow Phosphor for White-Light-Emitting Diodes

Title
Application of Ba2+·Mg2+ Co-doped Sr2SiO4: Eu yellow Phosphor for White-Light-Emitting Diodes
Author
김호건
Keywords
strontium compounds; europium; barium; magnesium; indium compounds; gallium compounds; III-V semiconductors; phosphors; light emitting diodes; luminescence
Issue Date
2005-06
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 152, No. 8, Page. H121-H123
Abstract
Large increases in the efficiency of the Sr2SiO4:Eu yellow phosphor under the 450-470 nm excitation range have been achieved by adding the co-doping element (Ba2+ and Mg2+) in the host. In order to apply to white light-emitting diodes (LEDs), we have synthesized a Ba(2+)center dot Mg2+ co-doped Sr2SiO4: Eu yellow phosphor and investigated an attempt to develop white LEDs by combining it with an InGaN blue LED chip (460 nm). Two distinct emission bands from the InGaN-based LED and the Ba2+center dotMg2+ co-doped Sr2SiO4: Eu phosphor are clearly observed at 460 and at 560 nm, respectively. These two emission bands combine to give a spectrum that appears white to the naked eye. (c) 2005 The Electrochemical Society. All rights reserved.
URI
http://jes.ecsdl.org/content/152/8/H121.shorthttp://repository.hanyang.ac.kr/handle/20.500.11754/111027
ISSN
0013-4651; 1945-7111
DOI
10.1149/1.1939187
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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