New Silicate Phosphors for a White LED

Kenji TODA
Yoshitaka KAWAKAMI
Shin-ichiro KOUSAKA
Yutaka ITO
Akira KOMENO
Kazuyoshi UEMATSU
Mineo SATO

Publication
IEICE TRANSACTIONS on Electronics   Vol.E89-C    No.10    pp.1406-1412
Publication Date: 2006/10/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.10.1406
Print ISSN: 0916-8516
Type of Manuscript: Special Section INVITED PAPER (Special Section on Electronic Displays)
Category: 
Keyword: 
phosphor,  silicate,  white LED,  

Full Text: PDF(1.4MB)>>
Buy this Article


Summary: 
We focus on the development of new silicate phosphors for a white LED. In the europium doped silicate system, four LED phosphor candidates-- Li2SrSiO4:Eu2+, Ba9Sc2Si6O24:Eu2+ , Ca3Si2O7:Eu2+ and Ba2MgSi2O7:Eu2+ were found. Luminescent properties under near UV and visible excitation were investigated for the new Eu2+ doped LED silicate phosphors. These new phosphors have a relatively strong absorption band in a long wavelength region.