Patent number: 9133393
Abstract: Disclosure relates to a phosphor formed by using oxynitride having a good durability and possibly emits diverse color of light from green to yellow when using a blue emitting diode or a ultraviolet emitting diode as an excitation source. The phosphor includes a host material represented by the general formula of (Ca1-xM1x)a(La1-yM2y)bSicNdOe (in which 0.5?b/a?7, 1.5?c/(a+b)?3.5, 1?d/c?1.8, 0.6?e/(a+b)?2, 0?x?0.5, and 0?y?0.5) and having a monoclinic crystalline structure, and at least one dissolved activator selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Tb, Ho, Er, Tm and Yb. M1 is at least one element selected from Ba, Mg, Sr, Mn and Zn, and M2 being at least one element selected from Y, Lu, Sc, Gd, Tb, Ce, Nd, Sm, Dy, Ho, Er, Tm, Yb, Al, Ga, Ge, Sn and In.
Type:
Grant
Filed:
January 6, 2012
Date of Patent:
September 15, 2015
Assignee:
INDUSTRY-ACADEMY COPERATION CORPS OF SUNCHON NATIONAL UNIVERSITY
Inventors:
Kee Sun Sohn, Un Bae Park, Nam Soo Shin
Publication number: 20130181164
Abstract: Disclosure relates to a phosphor formed by using oxynitride having a good durability and possibly emits diverse color of light from green to yellow when using a blue emitting diode or a ultraviolet emitting diode as an excitation source. The phosphor includes a host material represented by the general formula of (Ca1-xM1x)a(La1-yM2y)bSicNdOe (in which 0.5?b/a?7, 1.5?c/(a+b)?3.5, 1?d/c?1.8, 0.6?e/(a+b)?2, 0?x?0.5, and 0?y?0.5) and having a monoclinic crystalline structure, and at least one dissolved activator selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Tb, Ho, Er, Tm and Yb. M1 is at least one element selected from Ba, Mg, Sr, Mn and Zn, and M2 being at least one element selected from Y, Lu, Sc, Gd, Tb, Ce, Nd, Sm, Dy, Ho, Er, Tm, Yb, Al, Ga, Ge, Sn and In.
Type:
Application
Filed:
January 6, 2012
Publication date:
July 18, 2013
Applicant:
Industry-Academy Coperation Corps of Sunchon National University
Inventors:
Kee Sun Sohn, Un Bae Park, Nam Soo Shin