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Multi-color long-lasting phosphorescence of rare earth ions in CdSiO_3 matrix

机译:CdSiO_3基体中稀土离子的多色持久磷光

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摘要

A series of rare earth ions doped CdSiO_3:RE~(3+)(RE=Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) multi-color long-lasting phosphorescence phosphors are prepared by the conventional high-temperature solid-state method. The results of XRD measurement indicate that the products fired under 1050 ℃ for 3 h have a good crystallization without any detectable amount of impurity phase. Rare earth ions doped CdSiO_3 phosphors possess excellent luminescence properties. When rare earth ions such as Y~(3+), La~(3+), Gd~(3+), Lu~(3+), Ce~(3+), Nd~(3+) Ho~(3+), Er~(3+), Tm~(3+) and Yb~(3+) are introduced into the CdSiO_3 host, one broadband centered at about 420 nm resulting from traps can be observed. In the case of other earth ions such as Pr~(3+), Sm~(3+), Eu~(3+), Tb~(3+) and Dy~(3+), their characteristic line emitting as well as the ~420 nm nm broadband luminescence can be obtained. The mixture of their characteristic line emitting with the ~420 nm broadband luminescence results in various afterglow color.
机译:一系列掺杂CdSiO_3:RE〜(3 +)(RE = Y,La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu的稀土离子)的多通过常规高温固态方法制备彩色持久磷光磷光体。 X射线衍射(XRD)测量结果表明,在1050℃焙烧3h的产物具有良好的结晶效果,且没有检出杂质相。掺杂稀土离子的CdSiO_3荧光粉具有出色的发光性能。当稀土离子如Y〜(3 +),La〜(3 +),Gd〜(3 +),Lu〜(3 +),Ce〜(3 +),Nd〜(3+)Ho〜(将3 +),Er〜(3 +),Tm〜(3+)和Yb〜(3+)引入CdSiO_3主体中,可以观察到陷阱导致的一个中心在约420 nm处的宽带。对于其他地球离子,例如Pr〜(3 +),Sm〜(3 +),Eu〜(3 +),Tb〜(3+)和Dy〜(3+),它们的特征线也会发射因为可以获得〜420 nm nm的宽带发光。其特征线与〜420 nm宽带发光的混合会产生各种余辉颜色。

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