Near-infrared emission material, ${\rm{C}}{{\rm{e}}^{3 +}}$, ${\rm{E}}{{\rm{r}}^{3 +}}$ co-doped ${\rm{C}}{{\rm{a}}_{1.5}}{{\rm{Y}}_{1.5}}{\rm{A}}{{\rm{l}}_{3.5}}{\rm{S}}{{\rm{i}}_{1.5}}{{\rm{O}}_{12}}$ has been synthesized via a high-temperature solid-state reaction method. The luminescence intensity of 1532 nm emission excited with 455 nm increases 4.2 times after the introduction of ${\rm{C}}{{\rm{e}}^{3 +}}$ ions because of ${\rm{C}}{{\rm{e}}^{3 +}} \to {\rm{E}}{{\rm{r}}^{3 +}}$ radiation-reabsorption energy transfer and nonradiative energy transfer sensitization as well as the ${}^4{{\rm{I}}_{11/2}}({\rm{E}}{{\rm{r}}^{3 +}})\; + {\;^2}{{\rm{F}}_{5/2}}({\rm{C}}{{\rm{e}}^{3 +}}){\to ^4}{{\rm{I}}_{13/2}}({\rm{E}}{{\rm{r}}^{3 +}}) + {\rm{C}}{{\rm{e}}^{3 +}}{(^2}{{\rm{F}}_{7/2}})$ cross relaxation between ${\rm{C}}{{\rm{e}}^{3 +}}$ and ${\rm{E}}{{\rm{r}}^{3 +}}$ ions. The result shows that the developed material is convenient to obtain high-efficiency, near-infrared emission using a commercial blue GaN LED as a pumping source.

中文翻译：

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Ce3+、Er3+ 共掺杂 Ca1.5Y1.5Al3.5Si1.5O12 中 1532 nm 发射的增强

近红外发射物质，${\rm{C}}{{\rm{e}}^{3 +}}$，${\rm{E}}{{\rm{r}}^{3 + }}$共掺杂${\rm{C}}{{\rm{a}}_{1.5}}{{\rm{Y}}_{1.5}}{\rm{A}}{{\ rm{l}}_{3.5}}{\rm{S}}{{\rm{i}}_{1.5}}{{\rm{O}}_{12}}$已经通过高-温度固相反应法。引入${\rm{C}}{{\rm{e}}^{3 +}}$离子后，455 nm激发的1532 nm发射的发光强度增加了4.2倍，因为${\rm{C }}{{\rm{e}}^{3 +}} \to {\rm{E}}{{\rm{r}}^{3 +}}$辐射重吸收能量转移和非辐射能量转移敏化以及${}^4{{\rm{I}}_{11/2}}({\rm{E}}{{\rm{r}}^{3 +}})\; + {\;^2}{{\rm{F}}_{5/2}}({\rm{C}}{{\rm{e}}^{3 +}}){\to ^4 }{{\rm{I}}_{13/2}}({\rm{E}}{{\rm{r}}^{3 +}}) + {\rm{C}}{{\ RM {E}} ^ {3 +}} {（^ 2} {{\ RM {F}} _ {7/2}}）$之间交叉弛豫$ {\ RM {C}} {{\ RM {Ë }}^{3 +}}$和${\rm{E}}{{\rm{r}}^{3 +}}$离子。结果表明，所开发的材料可以方便地使用商用蓝色 GaN LED 作为泵浦源获得高效的近红外发射。