Narrowband green-emission, combined with superior physicochemical stability and thermal performance, is regarded as a common pursuit in backlight display applications. However, mainstream phosphor-converted materials composed of resin or silicone resin easily encounter the dilemma of thermal decomposition and chemical corrosion for practical use. To overcome this problem, in this work, Mn²⁺/Mg²⁺ co-doped AlON ceramic is successfully realized with ultra-narrowband green-emission and high transparency. The luminescent property of AlON: Mn²⁺–Mg²⁺ ceramic exhibits narrowband green emission centered at 509 nm with a full width at half maximum of 36 nm, which is smaller than the corresponding powder counterpart (44 nm). Moreover, AlON: Mn²⁺–Mg²⁺ ceramic presents a wide color gamut (103.6%) and high color purity (74%). Concurrently, high transmittance of this ceramic, at 82%, unveils a potential innovation in the display technology field. This work may facilitate the development of narrowband green light-emitting converters based on AlON: Mn²⁺–Mg²⁺ transparent ceramics in large color gamut backlight display applications.

中文翻译：

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Mn2+/Mg2+ 共掺杂 AlON 陶瓷，具有超窄带绿光发射和高透明度，适合宽色域背光应用

窄带绿光发射与卓越的物理化学稳定性和热性能相结合，被视为背光显示应用的共同追求。然而，主流的由树脂或硅树脂组成的荧光材料在实际使用中容易遇到热分解和化学腐蚀的困境。为了克服这个问题，本工作成功实现了Mn ²⁺ /Mg ²⁺共掺杂AlON陶瓷，具有超窄带绿光发射和高透明度。 AlON:Mn ²⁺ -Mg ²⁺陶瓷的发光特性呈现出中心位于509 nm的窄带绿光发射，半峰全宽为36 nm，小于相应的粉末对应物（44 nm）。此外，AlON:Mn ²⁺ –Mg ²⁺陶瓷具有宽色域（103.6%）和高色纯度（74%）。同时，这种陶瓷的透光率高达 82%，在显示技术领域展现出潜在的创新潜力。这项工作可能有助于在大色域背光显示应用中开发基于AlON:Mn ²⁺ –Mg ²⁺透明陶瓷的窄带绿色发光转换器。