Industrial Technology Research Institute

Chien-Yueh Tung

Wei-Jen Liu

Teng-Ming Chen

Yao-Tsung Yeh

Shyue-Ming Jang

Yi-Chen Chiu

Tien-Heng Huang

Fang-Ching Chang

Chih-Pin Wu

Woan-Jen Yang

Yung Chi Chen

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

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.

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.

Growing community of inventors

Taipei, Taiwan

Chien-Yueh Tung