Phosphor

Details Phosphor Phosphor

C - Chemistry, Metallurgy

09

K

31/126

C09K 11/77 (2006.01)

Patent

CA 1125494

PHOSPHOR Abstract of the Disclosure The specification discloses a phosphor co-activated with Nd3+ and Yb3+, which is excited by infrared rays and has an emission spectrum in the infrared wavelength region. This phosphor is represented by the following general formula: Ln1-x-yNdxYbyA5(Mo4)4, Ln1-x-yNdxYbyD3(BO3)4, Ln1-x-yNdxYbyP5O14, Ln1-x-yNdxYbyA3(PO4)2, Ln1-x-yNdxYbyNa2Mg2(VO4)3 or Ln1-x-yNdxYbyA'(MO4)2 wherein Ln stands for Bi, Ce, Ga, Gd, In, La, Lu, Sb, Sc and/or Y, A stands for K and/or Na, M stands for W and/or Mo, D stands for A? and/or Cr and A' stands for Li, Na and/or K. The phosphor can be used for optical card readers or the like and has good emission intensity.

320411

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