| 简介 |
PROBLEM TO BE SOLVED : To provide a decorative material which is obtained in a form capable of being processed into an accessory or the like and emits light having different colors or develops different colors under visible light, UV light or IR light.
SOLUTION : A single crystal or powder having a composition of chemical formula (Ndx, R1-x)2O3, (Ax, R1-x)BO3, or (Ax, R1-x)2DO5 [0≤(x)≤1; R is at least one rare earth element selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; A is an element selected from Nd, Ho an Tm; B is a trivalent element; D is a tetravalent element] is used as a decorative material.
COPYRIGHT : (C)2006, JPO&NCIPI |
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