Abstract Solid-state phosphors with apatite structure attract great attention due to their versatile chemical composition featuring a flexible crystal structure that provides crystallographic sites for occupation by single and multiple doping with various activators. These are the main reasons for considering these phosphors for potential application in various fields, like solid-state lighting and displays. This paper reports on the tuning of photoluminescence emission (PL) over the whole visible region, having maximum peaks at around 450 (blue), 484 (cyan), and 576 nm (yellow), owing to the occupation of the activator Ce3+ ions in various crystallographic sites (Y(1) and Y(2)), and to the energy transfer among various dopants in the Y5Si3O12N:Ce3+\Dy3+ single-phase oxonitridosilicate phosphors. Color-tunable Y5Si3O12N: Ce3+\Dy3+ phosphors were successfully synthesized by a method of high-temperature solid-state reaction. Under 359 nm ultra violet (UV) light excitation, the photoluminescence color can efficiently be tuned from the deep blue emission color to cyan and white by simply adjusting the concentration of the doped Ce3+ and Dy3+ ions.

中文翻译：

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用于固态照明应用的宽带白光发射 Y5Si3O12N:Ce3+/Dy3+ 氧氮化硅酸盐磷光体

摘要 具有磷灰石结构的固态荧光粉因其多功能的化学成分而备受关注，其具有灵活的晶体结构，可通过单次和多次掺杂各种活化剂提供占据的晶体位点。这些是考虑将这些磷光体用于各种领域（如固态照明和显示器）的主要原因。本文报告了整个可见光区域的光致发光发射 (PL) 的调谐，在 450（蓝色）、484（青色）和 576 nm（黄色）附近具有最大峰值，这是由于激活剂 Ce3+ 离子在各种晶体位点（Y（1）和 Y（2）），以及 Y5Si3O12N:Ce3+\Dy3+ 单相氧氮硅酸盐磷光体中各种掺杂剂之间的能量转移。颜色可调的 Y5Si3O12N：通过高温固相反应的方法成功合成了Ce3+\Dy3+荧光粉。在 359 nm 紫外 (UV) 光激发下，只需调整掺杂的 Ce3+ 和 Dy3+ 离子的浓度，就可以有效地将光致发光颜色从深蓝色发射颜色调整为青色和白色。