National Yang Ming Chiao Tung University

Industrial Technology Research Institute

Chunghwa Picture Tubes, Ltd.

Teng-Ming Chen

Yao-Tsung Yeh

Shyue-Ming Jang

Yi-Chen Chiu

Wei-Jen Liu

Chien-Yueh Tung

Yun-Chen Wu

Yen-Ying Kung

Chien-Hao Huang

Chun-Kuei Chang

Chi-Neng Mo

Shian-Jy Jassy Wang

Tien-Heng Huang

Te-Wen Kuo

Jen-Chuen Liao

Fang-Ching Chang

Chuang-Hung Chiu

Li-Ching Chuo

Fang-Yi Su

Wei-Ren Liu

Hsiao-Ping Tai

Chih-Pin Wu

Woan-Jen Yang

Kang-Ling Shih

Yung Chi Chen

Juih-Tzer Luo

A novel yellow phosphor of a fluorosulfide having a chemical formula of (ACeB)CaSrFSand a tetragonal crystal phase is disclosed, wherein A and B are different rare earth metals other than Ce, the values of x, y, z are 0&#x3c;x&#x2266;1, 0&#x2266;y&#x2266;1, and 0&#x2266;z&#x2266;1, respectively. A preparation method of the fluorosulfide and white-light emitting diode application thereof are also disclosed.

Yellow fluorosulfide phosphors for light-emitting diode and preparation method thereof

Disclosed is a phosphor having a formula of M(M'EuMn)(M&#x2033;Pr)(PO). M is a monovalent metal element selected from Li, Na, K, or combinations thereof. M&#x2032;, Eu, and Mn are divalent metal elements, and M&#x2032; is selected from Ca, Sr, Ba, Mg, Zn, or combinations thereof. M&#x2033; and Pr are trivalent metal elements, and M&#x2033; is selected from Sc, Y, La, Lu, Al, Ga, In, or combinations thereof. 0&#x2266;x&#x2266;0.2, 0&#x2266;y&#x2266;0.1, 0&#x2266;z&#x2266;0.2, and x+y+z&#x2260;0.

Phosphors and visible and UV light emitting devices utilizing the same

Disclosed is a phosphor having a formula of MM'(M&#x2033;PrGd)(PO). M is Li, Na, K, or combinations thereof. M&#x2032; is Ca, Sr, Ba, Mg, Zn, or combinations thereof. M&#x2033; is Sc, Y, La, Lu, Al, Ga, In, or combinations thereof. 0&#x2266;x&#x2266;1, 0&#x3c;y&#x2266;0.15, 0&#x3c;z&#x2266;0.7. The phosphor can be collocated with an excitation light source to construct a UV light-emitting device, wherein the excitation light source emits light with a wavelength of 140 nm to 240 nm.

Phosphate phosphor and UV light-emitting device utilizing the same

Borate phosphors have a formula ZnBO:Eu, Bi(wherein 0&#x2266;x&#x2266;0.6 and 0&#x2266;y&#x2266;0.6) emit visible light under the excitation of ultraviolet light or blue light, and may be further collocated with different colored phosphors to provide a white light illumination device.

Borate phosphor and white light illumination device utilizing the same

Novel red and green fluorosulfide phosphors have a chemical formula of (ACeB)SF, wherein A and B are both trivalent metal ions, 0&#x3c;x&#x2266;0.1, and 0&#x2266;y&#x2266;1. A is a rare earth metal, B is a rare earth metal or a group 13 metal. A preparation method of the fluorosulfide and white-light emitting diode application thereof are also disclosed.

Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes thereof

A yellow phosphor having oxyapatite structure, preparation method and white light-emitting diode thereof are disclosed. The yellow phosphor has a chemical formula of (AEu)B(PO)(SiO)(OS), wherein A and Eu are divalent metal ions, B is a trivalent metal ion, 0&#x3c;x&#x2266;0.6, 0&#x2266;y&#x2266;6, and 0&#x2266;z&#x2266;1. A can be an alkaline earth metal, Mn or Zn. B can be a group 13 metal, a rare earth meal or Bi.

Yellow phosphor having oxyapatite structure, preparation method and white light-emitting diode thereof

Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes

The present invention relates to novel phosphors, which are represented by a formula of (AM)DOS, wherein x, A, M and D are defined the same as the specification. In addition, the present invention further provides a light-emitting device using the above novel phosphors.

Phosphors and light-emitting devices using the same

The invention provides a phosphor composed of (MRE)SiOX, wherein M is Ba individually or in combination with at least one of Mg, Ca, Sr, or Zn; RE is Y, La, Pr, Nd, Eu, Gd, Tb, Ce, Dy, Yb, Er, Sc, Mn, Zn, Cu, Ni, or Lu; X is F, Cl, Br, or combinations thereof; 0.001&#x2266;x&#x2266;0.6, and 0.001&#x2266;y&#x2266;1.5. Under excitation, the phosphor of the invention emits visible light and may be collocated with other phosphors to provide a white light illumination device.

Phosphors, fabricating method thereof, and light emitting device employing the same

The invention provides borate phosphors composed of CaAlBO:M, wherein M is Pr, Nd, Eu, Eu, Gd, Tb+, Ce, Dy, Yb, Er, Sc, Mn, Zn, or combinations thereof, and 0&#x2266;x&#x2266;0.3. The invention also provides borate phosphors composed of ZnBO:Eu, Bi, wherein 0&#x2266;x&#x2266;0.6 and 0&#x2266;y&#x2266;0.6. The borate phosphors emit visible light under the excitation of ultraviolet light or blue light, and may be further collocated with different colored phosphors to provide a white light illumination device.

A red light fluorescent material adapted for being excited by a first light to emit a red light is provided. The red light fluorescent material has the chemical formula (1) presented below,AEu(MO)(PO)&#x2003;&#x2003;(1),

Red light fluorescent material and manufacturing method thereof, and white light luminescent device

A phosphor has a chemical formula of: A(BaEu)PO, wherein A is at least one of the group consisting of Li, Na and K, while 0&#x3c;m&#x3c;10, 0&#x3c;n&#x3c;10, 0&#x3c;y&#x3c;10, m+n+y=3/4 z, and 0.001&#x3c;x&#x3c;0.8.

Phosphors and lighting apparatus using the same

The invention provides borate phosphors composed of M(M)BO:(M), wherein Mis Li, Na, K, Rb, Cs, or combinations thereof, Mis Mg, Ca, Sr, Ba, Zn or combinations thereof, Mis Y, La, Pr, Nd, Eu, Gd, Tb, Ce, Dy, Yb, Er, Sc, Mn, Zn, Cu, Ni, Lu, or combinations thereof, and 0&#x2266;x&#x2266;0.3. The borate phosphors emit visible light under the excitation of ultraviolet light or blue light, and may be further collocated with different colored phosphors to provide a white light illumination device.

The invention provides a white light illumination device including an ultraviolet excitation light source and an ultraviolet excitable aluminosilicate phosphor. The ultraviolet excitable aluminosilicate phosphor has a formula as (M,Re)AlSiO:D, wherein M is Mg, Ca, Sr, Ba or combination thereof. In addition, Re is Y, La, Pr, Nd, Eu, Gd, Tb, Ce, Dy, Yb, Er, Sc, Mn, Zn, Cu, Ni, Lu or combination thereof, while 0&#x3c;a, b, c, d, 2a+3b+4c=2d, and 0&#x2266;x&#x2266;a. Furthermore, D is F, Cl, I, Br, OH, S or combinations thereof. The aluminosilicate phosphor emits blue or blue-green light under the excitation of ultraviolet light, and the aluminosilicate phosphor may further collocate with different color phosphors to provide a white light illumination device.

White light illumination device

The present invention provides a light-emitting diode-converted phosphor compound having the following chemical formula:(MCeEu)BOXwherein M is at least one element selected from the group consisting of Ca, Sr and Ba, X is at least one element selected from the group consisting of Cl and Br, 0&#x2266;m&#x2266;0.5, and 0&#x2266;n&#x2266;0.5.

Growing community of inventors

Hsinchu, Taiwan

Teng-Ming Chen