Patent number: 9938460
Abstract: A phosphor having a formula of TxEySizNrTbaLbMc is provided, in which T is Mg, Ca, Sr or Ba; E is Mg, Ca, Ba, Ti, Cu, Zn, B, Al, In, Sn, Sb, Bi, Ga, Y, La or Lu; L is Li, Na or K; M is Ce, Pr, Nd, Pm, Sm, Gd, Dy, Ho, Er, Tm, Yb or Mn; and 1.4?x?2.6, 0?y?0.5, 4.3?z?5.6, 7.4?r?9, 0.01?a?0.5, 0?b?0.5, 0?c?0.5, in which Tb ion is used as a luminescence center, and valence of the Tb ion is lower than 3+, and the phosphor is excited by an excitation light and has an emission band with a full width at half maximum greater than 50 nm. A method of forming the phosphor is also provided.
Type:
Grant
Filed:
February 21, 2017
Date of Patent:
April 10, 2018
Assignee:
NATIONAL TAIWAN UNIVERSITY
Inventors:
Chung-Hsin Lu, Che-Yuan Yang
Publication number: 20170158958
Abstract: A phosphor having a formula of TxEySizNrTbaLbMc is provided, in which T is Mg, Ca, Sr or Ba; E is Mg, Ca, Ba, Ti, Cu, Zn, B, Al, In, Sn, Sb, Bi, Ga, Y, La or Lu; L is Li, Na or K; M is Ce, Pr, Nd, Pm, Sm, Gd, Dy, Ho, Er, Tm, Yb or Mn; and 1.4?x?2.6, 0?y?0.5, 4.3?z?5.6, 7.4?r?9, 0.01?a?0.5, 0?b?0.5, 0?c?0.5, in which Tb ion is used as a luminescence center, and valence of the Tb ion is lower than 3+, and the phosphor is excited by an excitation light and has an emission band with a full width at half maximum greater than 50 nm. A method of forming the phosphor is also provided.
Type:
Application
Filed:
February 21, 2017
Publication date:
June 8, 2017
Inventors:
Chung-Hsin LU, Che-Yuan YANG