Phosphor, its preparation method and light emitting devices using the same

• US 20090050918A1
• Filed: 09/19/2008
• Published: 02/26/2009
• Est. Priority Date: 03/24/2006
• Status: Active Grant

• Current Assignee: Grirem Advanced Materials Co., Ltd.
• Original Assignee: General Research Institute For Nonferrous Metals, Beijing, Grirem Advanced Materials Co., Ltd.
• Inventors: Zhuang, Weidong, Li, Hongwei, Zhang, Shusheng, Hu, Yunsheng, Huang, Xiaowei, He, Huagiang, Long, Zhen
• Granted Patent: US 7,955,524 B2
• Time in Patent Office: Days
• US Class Current: 257/98
• CPC Class Codes: C09K 11/77744 Aluminosilicates
• CPC Class Codes: C09K 11/77924 Aluminosilicates
• CPC Class Codes: H01L 33/502 Wavelength conversion materials

Abstract

A phosphor can be excited by UV, purple or blue light LED, its preparation method, and light emitting devices incorporating the same. The phosphor contains rare earth, silicon, alkaline-earth metal, halogen, and oxygen, as well as aluminum or gallium. Its General formula of is aLn₂O₃.MO.bM′₂O₃.fSiO₂.cAX_e: dR, wherein Ln is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm; M is at least one metal element selected from a group consisting of Ca, Sr and Ba; M′ is at least one metal element selected from Al and Ga; A is at least one metal element selected from a group consisting of Li, Na, K, Mg, Ca, Sr and Ba; X is at least one element selected from F and Cl; R is at least one metal element selected from a group consisting of Ce, Eu, Tb and Mn; 0.01≦a≦2, 0.35≦b≦4, 0.01≦c≦1, 0.01≦d≦0.3, 0.01≦f≦3, 0.6≦e≦2.4. The phosphor has broad emitting range, high efficiency, better uniformity and stability. A light emitting device is obtained by incorporating the phosphor into a UV, purple or blue light emitting device.

Claims

1-12. -12. (canceled)

13. A phosphor comprising rare earth, silicon, alkaline-earth metal, halogen, and oxygen, as well as aluminum or gallium, wherein

the rare earth is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm as well as at least one metal element selected from a group consisting of Ce, Eu and Tb;

the alkaline-earth metal is at least one metal element selected from a group consisting of Mg, Ca, Sr and Ba; and

the halogen is at least one element selected from F and Cl.

14. The phosphor according to claim 13, wherein

the phosphor can be represented by a general formula of:

aLn₂O₃.MO.bM′

₂O₃.fSiO₂.cAX_e;

dR, wherein

Ln is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm;

M is at least one metal element selected from a group consisting of Ca, Sr and Ba;

M′

is at least one metal element selected from Al and Ga;

A is at least one metal element selected from a group consisting of Li, Na, K, Mg, Ca, Sr and Ba;

X is at least one element selected from F and Cl;

R is at least one metal element selected from a group consisting of Ce, Eu, Tb and Mn;

0.01≦

a≦

2;

0.35≦

b≦

4;

0.01≦

c≦

1,

0.01≦

d≦

0.3;

0.01≦

f≦

3; and

0.6≦

e≦

2.4.

15. The phosphor according to claim 13, wherein the phosphor is a member selected from the group consisting of:

1.47Y₂O₃.BaO.2.48Al₂O₃.1.03SiO₂.0.03BaF₂;

0.03Ce,0.01Eu

1.47Y₂O₃.BaO.2.47Al₂O₃.1.03SiO₂.0.06BaF₂;

0.04Ce,0.03Eu

Y₂O₃.0.48Sm₂O₃.BaO.2.45Al₂O₃.1.09SiO₂.0.06BaF₂;

0.03Ce,0.04Eu

La₂O₃.0.22Gd₂O₃.0.25Sm₂O₃.BaO.2.44Al₂O₃.1.12SiO₂.0.06BaF₂;

0.06Ce,0.01Eu,0.001Tb

2.0Y₂O₃.BaO.1.0Al₂O₃.0.05Ga₂O₃.2.5SiO₂.0.36BaF₂;

0.07Ce,0.03Eu,0.001Tb

1.91Y₂O₃.BaO.2.0Al₂O₃.1.06SiO₂.0.1LiF;

0.09Ce,0.02Eu,0.001Tb

1.34Pr₂O₃.BaO.2.5Al₂O₃.1.09SiO₂.0.16LiCl;

0.01Ce,0.08Eu,0.002Tb

0.818Y₂O₃.BaO.3.0Al₂O₃.1.12SiO₂.0.2NaF;

0.1Ce,0.04Eu,0.003Tb

0.297Y₂O₃.BaO.3.5Al₂O₃.1.15SiO₂.0.2NaCl;

0.12Ce,0.02Eu,0.004Tb

0.01 Y₂O₃.BaO.4.0Al₂O₃.0.01 SiO₂.0.918KF;

0.02Ce,0.1Eu,0.001Tb

1.473Nd₂O₃.BaO.2.79Al₂O₃.0.05SiO₂.0.37KCl;

0.02Ce,0.11Eu,0.002Tb

1.471Y₂O₃.BaO.2.81Al₂O₃.0.1 SiO₂.0.28MgF₂;

0.1Ce,0.12Eu,0.003Mn

1.472Y₂O₃.BaO.2.61 Al₂O₃.0.5SiO₂.0.28MgCl₂;

0.13Ce,0.01Eu,0.001 Mn

1.482Y₂O₃.BaO.2.215Al₂O₃.1.0SiO₂.0.57CaF₂;

0.01Ce,0.12Eu,0.004Mn

1.133Ho₂O₃.BaO.2.2Al₂O₃.2.0SiO₂.0.3CaCl₂;

0.1Ce,0.02Eu,0.001Tb

0.8Y₂O₃.BaO.0.42Al₂O₃.3.0SiO₂.0.16SrF₂;

0.01Ce,0.1Eu,0.003Tb

1.47Y₂O₃.BaO.2.42Al₂O₃′

SiO₂.0.16SrCl₂;

0.1Ce,0.04Eu

Yb₂O₃.0.47Gd₂O₃.BaO.2.24Al₂O₃.1.36SiO₂.0.16LiF;

0.13Ce,0.01Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.25Al₂O₃.1.39SiO₂.0.16LiCl;

0.08Ce,0.09Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.21Al₂O₃.1.42SiO₂.0.16NaF;

0.09Ce,0.02Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.195Al₂O₃.1.45SiO₂.0.16NaCl;

0.15Ce,0.13Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.18Al₂O₃.1.48SiO₂.0.16KF;

0.01Ce,0.01Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.42Al₂O₃.1.48SiO₂.0.16KCl;

0.03Ce,0.03Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.165Al₂O₃.1.51 SiO₂.0.16MgF₂;

0.08Ce,0.002Tb

Y₂O₃.0.35Sc₂O₃.CaO.2.15Al₂O₃.1.54SiO₂.0.16MgCl₂;

0.02Ce,0.005Tb

Y₂O₃.0.35Gd₂O₃.CaO.2.3Al₂O₃.1.12SiO₂.0.16CaF₂;

0.04Ce,0.001Tb

Y₂O₃.0.32Gd₂O₃.CaO.2.135Al₂O₃.1.57SiO₂.0.16CaCl₂;

0.07Ce,0.08Eu

Y₂O₃.0.32La₂O₃.CaO.2.12Al₂O₃.1.6SiO₂.0.16SrF₂;

0.02Ce,0.12Eu

Y₂O₃.0.29Gd₂O₃.CaO.2.105Al₂O₃.1.63SiO₂.0.16SrCl₂;

0.14Ce,0.02Eu

Y₂O₃.0.29Pr₂O₃.CaO.2.09Al₂O₃.1.66SiO₂.0.16BaCl₂;

0.02Ce,0.02Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.125Al₂O₃.1.74SiO₂.0.01 LiF;

0.06Ce,0.06Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.11 Al₂O₃.1.75SiO₂.0.03LiCl;

0.09Ce,0.08Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.095Al₂O₃.1.75SiO₂.0.06NaF;

0.06Ce,0.07Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.08Al₂O₃.1.74SiO₂.0.1 NaCl;

0.05Ce,0.08Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.065Al₂O₃.1.67SiO₂.0.2KF;

0.16Ce,0.13Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.05Al₂O₃.1.6SiO₂.0.3KCl;

0.15Ce,0.13Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.23Al₂O₃.0.9SiO₂.0.4MgF₂;

0.13Ce,0.1Eu

Y₂O₃.0.47Nd₂O₃.CaO.2.035Al₂O₃.1.43SiO₂.0.5MgCl₂;

0.04Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.02Al₂O₃.1.36SiO₂.0.6CaF₂;

0.02Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.005Al₂O₃.1.29SiO₂.0.7CaCl₂;

0.12Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO.1.99Al₂O₃.1.22SiO₂.0.8SrF₂;

0.13Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.46Al₂O₃.0.18SiO₂.0.9SrCl₂;

0.14Ce,0.05Eu

Y₂O₃.0.47Ho₂O₃.CaO.2.45Al₂O₃.0.1SiO₂.1.0BaCl₂;

0.06Ce,0.06Eu

1.47Y₂O₃.CaO.2.39Al₂O₃.0.05Ga₂O₃.1.08SiO₂.0.1 LiF;

0.08Ce,0.05Eu

0.01Y₂O₃.CaO.3.84Al₂O₃.0.05Ga₂O₃.1.00SiO₂.0.2LiCl;

0.11Ce,0.02Eu

0.05Yb₂O₃.CaO.3.36Al₂O₃.0.05Ga₂O₃.1.3SiO₂.0.3NaF;

0.1Ce,0.05Eu

0.1Y₂O₃.CaO.3.74Al₂O₃.0.05Ga₂O₃.0.82SiO₂.0.4NaCl;

0.1Ce,0.03Eu

0.5Y₂O₃.CaO.3.33Al₂O₃.0.05Ga₂O₃.0.74SiO₂.0.5KF;

0.09Ce,0.02Eu

1.0Y₂O₃.CaO.2.82Al₂O₃.0.05Ga₂O₃.0.66SiO₂.0.6KCl;

0.08Ce

2.0Y₂O₃.CaO.1.81Al₂O₃.0.05Ga₂O₃.0.55SiO₂.0.7MgF₂;

0.1Eu

0.01Sc₂O₃.SrO.3.79Al₂O₃.0.05Ga₂O₃.0.44SiO₂.0.8MgCl₂;

0.007Ce,0.01Eu

0.05Y₂O₃.SrO.3.74Al₂O₃.0.05Ga₂O₃.0.36SiO₂.0.9CaF₂;

0.06Ce,0.04Eu

0.1Y₂O₃.SrO.3.68Al₂O₃.0.05Ga₂O₃.0.28SiO₂.1.0CaCl₂;

0.06Ce,0.03Eu

0.5Y₂O₃.SrO.3.27Al₂O₃.0.05Ga₂O₃₁₁.2SiO₂.0.1SrF₂;

0.07Ce,0.04Eu

1.0La₂O₃.SrO.2.76Al₂O₃.0.05Ga₂O₃.1.12SiO₂.0.2SrCl₂;

0.09Ce,0.03Eu

2.0Y₂O₃.SrO.1.75Al₂O₃.0.05Ga₂O₃.1.04SiO₂.0.3BaCl₂;

0.1Ce,0.1Eu

0.47Pr₂O₃.0.5Gd₂O₃.0.5Sm₂O₃.SrO.2.3Al₂O₃.1.34SiO₂.0.06BaF₂;

0.1Ce,0.11Eu

0.47Y₂O₃.Gd₂O₃.SrO.2.29Al₂O₃.1.36SiO₂.0.06BaF₂;

0.07Ce,0.02Eu

0.47Y₂O₃.Gd₂O₃.SrO.2.23Al₂O₃.1.38SiO₂.0.12LiF;

0.12Ce,0.02Eu 0.47Nd₂O₃.Gd₂O₃.SrO.2.22Al₂O₃.1.4SiO₂.0.12LiCl;

0.02Ce,0.11Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.21Al₂O₃.1.42SiO₂.012NaF;

0.02Ce,0.02Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.2Al₂O₃.1.44SiO₂.0.12NaCl;

0.08Ce,0.08Eu

0.41Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.43SiO₂.0.12KF;

0.07Ce,0.01Eu

0.41Y₂O₃.Gd₂O₃.SrO.2.42Al₂O₃.1.18SiO₂.0.12KCl;

0.01Ce,0.03Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.46SiO₂.0.06MgF₂;

0.08Ce,0.10Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.18Al₂O₃.1.48SiO₂.0.06MgCl₂;

0.1Ce,0.1Eu,0.1Tb

0.35Y₂O₃.Gd₂O₃.SrO.1.46Al₂O₃.1.96SiO₂.0.06CaF₂;

0.16Ce

0.35Pr₂O₃.Gd₂O₃.SrO.2.17Al₂O₃.1.5SiO₂.0.06CaCl₂;

0.12Ce,0.12Eu 0.32Y₂O₃.Gd₂O₃.SrO.2.12Al₂O₃.1.6SiO₂.0.06SrF₂;

0.12Ce,0.10Eu

0.32Y₂O₃.Gd₂O₃.SrO.2.07Al₂O₃.1.7SiO₂.0.06SrCl₂;

0.08Ce,0.12Eu

0.29Y₂O₃Gd₂O₃.SrO.2.02Al₂O₃.1.8SiO₂.0.06BaF₂;

0.06Ce,0.10Eu and

0.29Nd₂O₃.Gd₂O₃.SrO.1.97Al₂O₃.1.9SiO₂.0.06BaCl₂;

0.08Ce,0.10Eu

16. A method of producing the phosphor according to claim 14, comprising:

weighing elementary substance or compounds or salts of Ln, M, M′

, halide of A, and compounds or salts of R and Si as raw materials with weights that are based on the stoichiometric ratio, and adding an excess quantity of SiO₂ and/or AX_e as flux into the raw materials, then mixing and grinding to form a mixture;

baking the mixture at high temperature under reducing atmosphere; and

carrying out a post-treatment of the baked product to obtain the phosphor.

17. The method according to claim 16, wherein the compounds of Ln, M, M′

, A, R and Si are selected from the group consisting of corresponding oxide, hydroxide, carbonate, nitrate, and organic salt.

18. The method according to claim 16, wherein the amount of flux is in a range between 0.001% to 20% by weight of the total phosphor.

19. The method according to claim 16, wherein baking is carried out at least two times.

20. The method according to claim 19, wherein the temperature of baking is at a range between 500°

C. to 1600°

C.

21. The method according to claim 19 or 20, wherein each baking operation should last from 0.5 h to 15 h.

22. The method according to claim 16, wherein the post-treatment includes grinding, air flow crushing, washing, sifting, drying and grading.

23. The method according to claim 22, wherein the washing step in the post-treatment can be carried out using acid solution, alkali solution or water.

24. The method according to claim 22, wherein the grading step in the post-treatment is carried out with at least one method selected from a group consisting of sedimentation method, sieving method, hydraulic classification and air flow grading.

25. The method according to claim 16, wherein the phosphor is a member selected from the group consisting of:

1.47Y₂O₃.BaO.2.48Al₂O₃.1.03SiO₂.0.03BaF₂;

0.03Ce,0.01Eu

1.47Y₂O₃.BaO.2.47Al₂O₃.1.03SiO₂.0.06BaF₂;

0.04Ce,0.03Eu

Y₂O₃.0.48Sm₂O₃.BaO.2.45Al₂O₃.1.09SiO₂.0.06BaF₂;

0.03Ce,0.04Eu

La₂O₃.0.22Gd₂O₃.0.25Sm₂O₃.BaO.2.44Al₂O₃.1.12SiO₂.0.06BaF₂;

0.06Ce,0.01Eu,0.001Tb

2.0Y₂O₃.BaO.1.0Al₂O₃.0.05Ga₂O₃.2.5SiO₂.0.36BaF₂;

0.07Ce,0.03Eu,0.001Tb

1.919Y₂O₃.BaO.2.0Al₂O₃.1.06SiO₂.0.1LiF;

0.09Ce,0.02Eu,0.001Tb

1.34Pr₂O₃.BaO.2.5Al₂O₃.1.09SiO₂.0.16LiCl;

0.01Ce,0.08Eu,0.002Tb

0.818Y₂O₃.BaO.3.0Al₂O₃.1.12SiO₂.0.2NaF;

0.1Ce,0.04Eu,0.003Tb

0.297Y₂O₃.BaO.3.5Al₂O₃.0.15SiO₂.0.2NaCl;

0.12Ce,0.02Eu,0.004Tb

0.01Y₂O₃.BaO.4.0Al₂O₃.0.01 SiO₂.0.918KF;

0.02Ce,0.1Eu,0.001Tb

1.473Nd₂O₃.BaO.2.79Al₂O₃.0.05SiO₂.0.37KCl;

0.02Ce,0.11Eu,0.002Tb

1.471 Y₂O₃.BaO.2.81 Al₂O₃.0.1 SiO₂.0.28MgF₂;

0.1Ce,0.12Eu,0.003Mn

1.472Y₂O₃.BaO.2.61 Al₂O₃.0.5SiO₂.0.28MgCl₂;

0.13Ce,0.01Eu,0.001 Mn

1.482Y₂O₃.BaO.2.215Al₂O₃.1.0SiO₂.0.57CaF₂;

0.01Ce,0.12Eu,0.004Mn

1.133Ho₂O₃.BaO.2.2Al₂O₃.2.0SiO₂.0.3CaCl₂;

0.1Ce,0.02Eu,0.001Tb

0.8Y₂O₃.BaO.0.42Al₂O₃.3.0SiO₂.0.16SrF₂;

0.01Ce,0.1Eu,0.003Tb

1.47Y₂O₃.BaO.2.42Al₂O₃. SiO₂.0.16SrCl₂;

0.1Ce,0.04Eu

Yb₂O₃.0.47Gd₂O₃.BaO.2.24Al₂O₃.1.36SiO₂.0.16LiF;

0.13Ce,0.01Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.25Al₂O₃.1.39SiO₂.0.16LiCl;

0.08Ce,0.09Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.21 Al₂O₃.1.42SiO₂.0.16NaF;

0.09Ce,0.02Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.195Al₂O₃.1.45SiO₂.0.16NaCl;

0.15Ce,0.13Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.18Al₂O₃.1.48SiO₂.0.16KF;

0.01Ce,0.01Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.42Al₂O₃.1.48SiO₂.0.16KCl;

0.03Ce,0.03Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.165Al₂O₃.1.51 SiO₂.0.16MgF₂;

0.08Ce,0.002Tb

Y₂O₃.0.35Sc₂O₃.CaO.2.15Al₂O₃.1.54SiO₂.0.16MgCl₂;

0.02Ce,0.005Tb

Y₂O₃.0.35Gd₂O₃.CaO.2.3Al₂O₃.1.12SiO₂.0.16CaF₂;

0.04Ce,0.001Tb

Y₂O₃.0.32Gd₂O₃.CaO.2.135Al₂O₃.1.57SiO₂.0.16CaCl₂;

0.07Ce,0.08Eu

Y₂O₃.0.32La₂O₃.CaO.2.12Al₂O₃.1.6SiO₂.0.16SrF₂;

0.02Ce,0.12Eu

Y₂O₃.0.29Gd₂O₃.CaO.2.105Al₂O₃.1.63SiO₂.0.16SrCl₂;

0.14Ce,0.02Eu

Y₂O₃.0.29Pr₂O₃.CaO.2.09Al₂O₃.1.66SiO₂.0.16BaCl₂;

0.02Ce,0.02Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.125Al₂O₃.1.74SiO₂.0.01 LiF;

0.06Ce,0.06Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.11 Al₂O₃.1.75SiO₂.0.03LiCl;

0.09Ce,0.08Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.095Al₂O₃.1.75SiO₂.0.06NaF;

0.06Ce,0.07Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.08Al₂O₃.1.74SiO₂.0.1 NaCl;

0.05Ce,0.08Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.065Al₂O₃.1.67SiO₂.0.2KF;

0.16Ce,0.13Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.05Al₂O₃.1.6SiO₂.0.3KCl;

0.15Ce,0.13Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.23Al₂O₃.0.9SiO₂.0.4MgF₂;

0.13Ce,0.1Eu

Y₂O₃.0.47Nd₂O₃.CaO.2.035Al₂O₃.1.43SiO₂.0.5MgCl₂;

0.04Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.02Al₂O₃.1.36SiO₂.0.6CaF₂;

0.02Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.005Al₂O₃.1.29SiO₂.0.7CaCl₂;

0.12Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO1.99Al₂O₃.1.22SiO₂.0.8SrF₂;

0.13Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.46Al₂O₃.0.18SiO₂.0.9SrCl₂;

0.14Ce,0.05Eu

Y₂O₃.0.47Ho₂O₃.CaO.2.45Al₂O₃.0.1 SiO₂.1.0BaCl₂;

0.06Ce,0.06Eu

1.47Y₂O₃.CaO.2.39Al₂O₃.0.05Ga₂O₃.1.08SiO₂₀.1LiF;

0.08Ce,0.05Eu

0.01 Y₂O₃.CaO.3.84Al₂O₃.0.05Ga₂O₃.1.00SiO₂.0.2LiCl;

0.11Ce,0.02Eu

0.05Yb₂O₃.CaO.3.36Al₂O₃.0.05Ga₂O₃.1.3SiO₂.0.3NaF;

0.1Ce,0.05Eu

0.1Y₂O₃CaO3.74Al₂O₃.0.05Ga₂O₃.0.82SiO₂.0.4NaCl;

0.1Ce,0.03Eu

0.5Y₂O₃.CaO.3.33Al₂O₃.0.05Ga₂O₃.0.74SiO₂.0.5KF;

0.09Ce,0.02Eu

1.0Y₂O₃.CaO.2.82Al₂O₃.0.05Ga₂O₃.0.66SiO₂.0.6KCl;

0.08Ce 2.0Y₂O₃.CaO.1.81Al₂O₃.0.05Ga₂O₃.0.55SiO₂.0.7MgF₂;

0.1Eu

0.01Sc₂O₃.SrO.3.79Al₂O₃.0.05Ga₂O₃.0.44SiO₂.0.8MgCl₂;

0.007Ce,0.01Eu

0.05Y₂O₃.SrO.3.74Al₂O₃.0.05Ga₂O₃.0.36SiO₂.0.9CaF₂;

0.06Ce,0.04Eu

0.1Y₂O₃.SrO.3.68Al₂O₃.0.05Ga₂O₃.0.28SiO₂.1.0CaCl₂;

0.06Ce,0.03Eu

0.5Y₂O₃.SrO.3.27Al₂O₃.0.05Ga₂O₃.1.2SiO₂.0.1SrF₂;

0.07Ce,0.04Eu

1.0La₂O₃.SrO.2.76Al₂O₃.0.05Ga₂O₃.0.12SiO₂.0.2SrCl₂;

0.09Ce,0.03Eu

2.0Y₂O₃.SrO.1.75Al₂O₃.0.05Ga₂O₃.1.04SiO₂.0.3BaCl₂;

0.1Ce,0.1Eu

0.47Pr₂O₃.0.5Gd₂O₃.0.5Sm₂O₃.SrO.2.3Al₂O₃.1.34SiO₂.0.06BaF₂;

0.1Ce,0.11Eu

0.47Y₂O₃.Gd₂O₃.SrO.2.29Al₂O₃.1.36SiO₂.0.06BaF₂;

0.07Ce,0.02Eu 0.47Y₂O₃.Gd₂O₃.SrO.2.23Al₂O₃.1.38SiO₂.0.12LiF;

0.12Ce,0.02Eu

0.47Nd₂O₃.Gd₂O₃.SrO.2.22Al₂O₃.1.4SiO₂.0.12LiCl;

0.02Ce,0.11Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.21Al₂O₃.1.42SiO₂.0.12NaF;

0.02Ce,0.02Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.2Al₂O₃.1.44SiO₂.0.12NaCl;

0.08Ce,0.08Eu

0.41 Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.43SiO₂.0.12KF;

0.07Ce,0.01Eu

0.41 Y₂O₃.Gd₂O₃.SrO.2.42Al₂O₃.1.18SiO₂.0.12KCl;

0.01Ce,0.03Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.46SiO₂.0.06MgF₂;

0.08Ce,0.10Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.18Al₂O₃.1.48SiO₂.0.06MgCl₂;

0.1Ce,0.1Eu,0.1Tb

0.35Y₂O₃.Gd₂O₃.SrO.1.46Al₂O₃.1.96SiO₂.0.06CaF₂;

0.16Ce 0.35Pr₂O₃.Gd₂O₃.SrO.2.17Al₂O₃.1.5SiO₂.0.06CaCl₂;

0.12Ce,0.12Eu

0.32Y₂O₃.Gd₂O₃.SrO.2.12Al₂O₃.1.6SiO₂.0.06SrF₂;

0.12Ce,0.10Eu 0.32Y₂O₃.Gd₂O₃.SrO.2.07Al₂O₃.1.7SiO₂.0.06SrCl₂;

0.08Ce,0.12Eu

0.29Y₂O₃.Gd₂O₃.SrO.2.02Al₂O₃.1.8SiO₂.0.06BaF₂;

0.06Ce,0.10Eu and

0.29Nd₂O₃.Gd₂O₃.SrO.1.97Al₂O₃.1.9SiO₂.0.06BaCl₂;

0.08Ce,0.10Eu

26. A light emitting device comprising:

a phosphor; and

a semiconductor light emitting element capable of emitting a light in the range from ultraviolet light to visible light, wherein

the phosphor contains rare earth, silicon, alkaline-earth metal, halogen, and oxygen, as well as aluminum or gallium;

the rare earth is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm as well as at least one metal element selected from a group consisting of Ce, Eu and Tb;

the alkaline-earth metal is at least one metal element selected from a group consisting of Mg, Ca, Sr and Ba; and

the halogen is at least one element selected from F and Cl.

27. The light emitting device according to claim 26, wherein the phosphor is represented by the general formula of:

aLn₂O₃.MO.bM′

₂O₃.fSiO₂.cAX_e;

dR, wherein

Ln is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm;

M is at least one metal element selected from a group consisting of Ca, Sr and Ba;

M′

is at least one metal element selected from Al and Ga;

A is at least one metal element selected from a group consisting of Li, Na, K, Mg, Ca, Sr and Ba;

X is at least one element selected from F and Cl;

R is at least one metal element selected from a group consisting of Ce, Eu, Tb and Mn;

0.01≦

a≦

2;

0.35≦

b≦

4;

0.01≦

c≦

1;

0.01≦

d≦

0.3;

0.01≦

f≦

3; and

0.6≦

e≦

2.4.

28. The device according to claim 27, wherein the phosphor is a member selected from the group consisting of:

1.47Y₂O₃.BaO.2.48Al₂O₃.1.03SiO₂.0.03BaF₂;

0.03Ce,0.01Eu

1.47Y₂O₃.BaO.2.47Al₂O₃.1.03SiO₂.0.06BaF₂;

0.04Ce,0.03Eu

Y₂O₃.0.48Sm₂O₃.BaO.2.45Al₂O₃.1.09SiO₂.0.06BaF₂;

0.03Ce,0.04Eu

La₂O₃.0.22Gd₂O₃.0.25Sm₂O₃.BaO.2.44Al₂O₃.1.12SiO₂.0.06BaF₂;

0.06Ce,0.01Eu,0.001Tb

2.0Y₂O₃.BaO.1.0Al₂O₃.0.05Ga₂O₃.2.5SiO₂.0.36BaF₂;

0.07Ce,0.03Eu,0.001Tb

1.91 Y₂O₃.BaO.2.0Al₂O₃.1.06SiO₂.0.1LiF;

0.09Ce,0.02Eu,0.001Tb

1.34Pr₂O₃.BaO.2.5Al₂O₃.1.09SiO₂.0.16LiCl;

0.01Ce,0.08Eu,0.002Tb

0.818Y₂O₃.BaO.3.0Al₂O₃.1.12SiO₂.0.2NaF;

0.1Ce,0.04Eu,0.003Tb

0.297Y₂O₃.BaO.3.5Al₂O₃.1.15SiO₂.0.2NaCl;

0.12Ce,0.02Eu,0.004Tb

0.01Y₂O₃.BaO.4.0Al₂O₃.0.01 SiO₂.0.918KF;

0.02Ce,0.1Eu,0.001Tb

1.473Nd₂O₃.BaO.2.79Al₂O₃.0.05SiO₂.0.37KCl;

0.02Ce,0.11Eu,0.002Tb

1.471 Y₂O₃.BaO.2.81 Al₂O₃.0.1 SiO₂.0.28MgF₂;

0.1Ce,0.12Eu,0.003Mn

1.472Y₂O₃.BaO.2.61 Al₂O₃.0.5SiO₂.0.28MgCl₂;

0.13Ce,0.01Eu,0.001 Mn

1.482Y₂O₃.BaO.2.215Al₂O₃.1.0SiO₂.0.57CaF₂;

0.01Ce,0.12Eu,0.004Mn

1.133Ho₂O₃.BaO.2.2Al₂O₃.2.0SiO₂.0.3CaCl₂;

0.1Ce,0.02Eu,0.001Tb

0.8Y₂O₃.BaO.0.42Al₂O₃.3.0SiO₂.0.16SrF₂;

0.01Ce,0.1Eu,0.003Tb

1.47Y₂O₃.BaO.2.42Al₂O₃.SiO₂.0.16SrCl₂;

0.1Ce,0.04Eu

Yb₂O₃.0.47Gd₂O₃.BaO.2.24Al₂O₃.1.36SiO₂₁₀. 16LiF;

0.13Ce,0.01Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.25Al₂O₃.1.39SiO₂.0.16LiCl;

0.08Ce,0.09Eu

Y₂O₃.0.44Gd₂O₃.BaO.2.21Al₂O₃.1.42SiO₂.0.16NaF;

0.09Ce,0.02Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.195Al₂O₃.1.45SiO₂.0.16NaCl;

0.15Ce,0.13Eu

Y₂O₃.0.41 Gd₂O₃.BaO.2.18Al₂O₃.1.48SiO₂.0.16KF;

0.01Ce,0.01Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.42Al₂O_3.1.48SiO₂.0.16KCl;

0.03Ce,0.03Eu

Y₂O₃.0.38Gd₂O₃.CaO.2.165Al₂O₃.1.51 SiO₂.0.16MgF₂;

0.08Ce,0.002Tb

Y₂O₃.0.35Sc₂O₃.CaO.2.15Al₂O₃.1.54SiO₂.0.16MgCl₂;

0.02Ce,0.005Tb

Y₂O₃.0.35Gd₂O₃.CaO.2.3Al₂O₃.1.12SiO₂.0.16CaF₂;

0.04Ce,0.001Tb

Y₂O₃.0.32Gd₂O₃.CaO.2.135Al₂O₃.1.57SiO₂.0.16CaCl₂;

0.07Ce,0.08Eu

Y₂O₃.0.32La₂O₃.CaO.2.12Al₂O₃.1.6SiO₂.0.16SrF₂;

0.02Ce,0.12Eu

Y₂O₃.0.29Gd₂O₃.CaO.2.105Al₂O₃.1.63SiO₂.0.16SrCl₂;

0.14Ce,0.02Eu

Y₂O₃.0.29Pr₂O₃.CaO.2.09Al₂O₃.1.66SiO₂.0.16BaCl₂;

0.02Ce,0.02Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.125Al₂O₃.1.74SiO₂.0.01 LiF;

0.06Ce,0.06Eu

Y₂O₃.0.26Sm₂O₃.CaO.2.11 Al₂O₃.1.75SiO₂.0.03LiCl;

0.09Ce,0.08Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.095Al₂O₃.1.75SiO₂.0.06NaF;

0.06Ce,0.07Eu

Y₂O₃.0.23Sm₂O₃.CaO.2.08Al₂O₃.1.74SiO₂.0.1 NaCl;

0.05Ce,0.08Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.065Al₂O₃.1.67SiO₂.0.2KF;

0.16Ce,0.13Eu

Y₂O₃.0.2Sm₂O₃.CaO.2.05Al₂O₃.1.6SiO₂.0.3KCl;

0.15Ce,0.13Eu

Y₂O₃-0.47Sm₂O₃.CaO.2.23Al₂O₃.0.9SiO₂.0.4MgF₂;

0.13Ce,0.1Eu

Y₂O₃.0.47Nd₂O₃.CaO.2.035Al₂O₃.1.43SiO₂.0.5MgCl₂;

0.04Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.02Al₂O₃.1.36SiO₂.0.6CaF₂;

0.02Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.005Al₂O₃.1.29SiO₂.0.7CaCl₂;

0.12Ce,0.03Eu

Y₂O₃.0.47Sm₂O₃.CaO.1.99Al₂O₃.1.22SiO₂.0.8SrF₂;

0.13Ce,0.04Eu

Y₂O₃.0.47Sm₂O₃.CaO.2.46Al₂O₃.0.18SiO₂.0.9SrCl₂;

0.14Ce,0.05Eu

Y₂O₃.0.47Ho₂O₃.CaO.2.45Al₂O₃.0.1 SiO₂.1.0BaCl₂;

0.06Ce,0.06Eu

1.47Y₂O₃.CaO.2.39Al₂O₃.0.05Ga₂O₃ 1.08SiO₂.0.1LiF;

0.08Ce,0.05Eu

0.01Y₂O₃.CaO.3.84Al₂O₃.0.05Ga₂O₃.1.00SiO₂.0.2LiCl;

0.11Ce,0.02Eu 0.05Yb₂O₃.CaO.3.36Al₂O₃.0.05Ga₂O₃.1.3SiO₂.0.3NaF;

0.1Ce,0.05Eu

0.1Y₂O₃.CaO.3.74Al₂O₃.0.05Ga₂O₃.0.82SiO₂.0.4NaCl;

0.11Ce,0.03Eu

0.5Y₂O₃.CaO.3.33Al₂O₃.0.05Ga₂O₃.0.74SiO₂.0.5KF;

0.09Ce,0.02Eu

1.0Y₂O₃.CaO.2.82Al₂O₃.0.05Ga₂O₃.0.66SiO₂.0.6KCl;

0.08Ce

2.0Y₂O₃.CaO.1.81Al₂O₃.0.05Ga₂O₃.0.55SiO₂.0.7MgF₂;

0.1Eu

0.01 Sc₂O₃SrO.3.79Al₂O₃.0.05Ga₂O₃.0.44SiO₂.0.8MgCl₂;

0.007Ce,0.01Eu

0.05Y₂O₃.SrO.3.74Al₂O₃.0.05Ga₂O₃.0.36SiO₂.0.9CaF₂;

0.06Ce,0.04Eu

0.1Y₂O₃SrO.3.68Al₂O₃.0.05Ga₂O₃.0.28SiO₂.1.0CaCl₂;

0.06Ce,0.03Eu

0.5Y₂O₃.SrO.3.27Al₂O₃.0.05Ga₂O₃.1.2SiO₂.0.1SrF₂;

0.07Ce,0.04Eu

1.0La₂O₃.SrO.2.76Al₂O₃.0.05Ga₂O₃.0.12SiO₂.0.2SrCl₂;

0.09Ce,0.03Eu

2.0Y₂O₃.SrO.1.75Al₂O₃.0.05Ga₂O₃.1.04SiO₂.0.3BaCl₂;

0.1Ce,0.1Eu

0.47Pr₂O₃.0.5Gd₂O₃.0.5Sm₂O₃.SrO.2.3Al₂O₃.1.34SiO₂.0.06BaF₂;

0.1Ce,0.11Eu

0.47Y₂O₃.Gd₂O₃.SrO.2.29Al₂O₃.1.36SiO₂.0.06BaF₂;

0.07Ce,0.02Eu

0.47Y₂O₃.Gd₂O₃.SrO.2.23Al₂O₃.1.38SiO₂.0.12LiF;

0.12Ce,0.02Eu

0.47Nd₂O₃.Gd₂O₃.SrO.2.22Al₂O₃.1.4SiO₂.0.12LiCl;

0.02Ce,0.11Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.21Al₂O₃.1.42SiO₂.0.12NaF;

0.02Ce,0.02Eu

0.44Y₂O₃.Gd₂O₃.SrO.2.2Al₂O₃.1.44SiO₂.0.12NaCl;

0.08Ce,0.08Eu

0.41 Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.43SiO₂.0.12KF;

0.07Ce,0.01Eu

0.41 Y₂O₃.Gd₂O₃.SrO.2.42Al₂O₃.1.18SiO₂.0.12KCl;

0.01Ce,0.03Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.19Al₂O₃.1.46SiO₂.0.06MgF₂;

0.08Ce,0.10Eu

0.38Y₂O₃.Gd₂O₃.SrO.2.18Al₂O₃.1.48SiO₂.0.06MgCl₂;

0.1Ce,0.1Eu,0.1Tb

0.35Y₂O₃.Gd₂O₃.SrO.1.46Al₂O₃.1.96SiO₂.0.06CaF₂;

0.16Ce

0.35Pr₂O₃.Gd₂O₃.SrO.2.17Al₂O₃.1.5SiO₂.0.06CaCl₂;

0.12Ce,0.12Eu

0.32Y₂O₃.Gd₂O₃.SrO.2.12Al₂O₃.1.6SiO₂.0.06SrF₂;

0.12Ce,0.10Eu

0.32Y₂O₃.Gd₂O₃.SrO.2.07Al₂O₃.1.7SiO₂.0.06SrCl₂;

0.08Ce,0.12Eu

0.29Y₂O₃.Gd₂O₃.SrO.2.02Al₂O₃.1.8SiO₂.0.06BaF₂;

0.06Ce,0.10Eu and 0.29Nd₂O₃.Gd₂O₃.SrO.1.97Al₂O₃.1.9SiO₂.0.06BaCl₂;

0.08Ce,0.10 Eu