Publication number: 20120229019
Abstract: The disclosure provides a phosphor composed of (Sr1?x?yRExMy)4SiwAl14?wO25?z?wX2zN2w/3, wherein: M is Ba, Mg, Ca, La, or combinations thereof, RE is Y, Pr, Nd, Eu, Gd, Tb, Ce, Dy, Yb, Er, Sc, Mn, Zn, Cu, Ni, Lu, or combinations thereof, 0.001?x?0.6, 0?y?0.6, 0?z?0.6, 0?w?0.6, and 1?x?y>0. The phosphor of the disclosure has a large excitation bandwidth (140-470 nm). Under excitation, the phosphor of the invention emits visible light and may be collocated with other phosphors to provide a white light illumination device.
Type:
Application
Filed:
April 8, 2011
Publication date:
September 13, 2012
Applicant:
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventors:
Wei-Ren Liu, Yi-Chen Chiu, Yao-Tsung Yeh, Shyue-Ming Jang