Alkaline-earth-metal-ion blending enhanced mechanoluminescence of lanthanide ions in MZnOS hosts for stress sensing and anticounterfeiting,Journal of Materials Chemistry C

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Alkaline-earth-metal-ion blending enhanced mechanoluminescence of lanthanide ions in MZnOS hosts for stress sensing and anticounterfeiting
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2023-03-16 , DOI: 10.1039/d2tc05541d
Jingna Jia ₁ , Dongyang Wang ₁ , Xuwen Gao ₁ , Yuqi Xu ₁ , Xiaoxuan Ren ₁ , Guizheng Zou ₁

Affiliation

Mechanoluminescent (ML) materials with highly-efficient and multicolored emission are strongly anticipated in the field of stress sensing and information encryption. Here, a combined strategy of alkaline-earth-metal-ion blending in hosts and lanthanide-ion doping is developed to design ML materials. The strategy can be conveniently performed via doping binary (Ca, Sr)ZnOS hosts with lanthanide ions at optimized Ca²⁺/Sr²⁺ ratios. Four different lanthanide ions, including Er³⁺, Dy³⁺, Sm³⁺, and Yb³⁺, can be separately doped into the binary (Ca, Sr)ZnOS host, which partially occupy its Ca²⁺ sites and work as luminescent centers to give off stronger ML compared to when the same lanthanide-ion-dopant is doped into the unary-host of either CaZnOS or SrZnOS. Not only each lanthanide-ion-dopant in the binary host can separately give off efficient ML with a much lowered-pressure down to 2 N, but also ML colors can be easily tuned via changing the lanthanide dopant, such as green ML from Ca_0.66Sr_0.30ZnOS:Er_0.04, orange ML from Ca_0.66Sr_0.30ZnOS:Dy_0.04, red ML from Ca_0.66Sr_0.30ZnOS:Sm_0.04, and near-infrared ML from Ca_0.66Sr_0.30ZnOS:Yb_0.04. The lanthanide-ion-dopant-involved multicolor ML from binary (Ca, Sr)ZnOS hosts can be exploited for both stress sensing and anti-counterfeiting.

中文翻译：

碱土金属离子混合增强 MZnOS 主体中镧系离子的机械发光，用于应力传感和防伪

具有高效和多色发射的机械发光（ML）材料在应力传感和信息加密领域受到强烈期待。在这里，开发了一种在主体中混合碱土金属离子和镧系元素离子掺杂的组合策略来设计 ML 材料。通过以优化的 Ca ²⁺ /Sr ²⁺比率掺杂镧系元素离子的二元 (Ca, Sr)ZnOS 主体，可以方便地执行该策略。四种不同的镧系离子，包括 Er ³⁺、Dy ³⁺、Sm ³⁺和 Yb ³⁺，可以分别掺杂到二元 (Ca, Sr)ZnOS 主体中，部分占据其 Ca ²⁺与将相同的镧系离子掺杂剂掺杂到 CaZnOS 或 SrZnOS 的一元主体中时相比，这些位点和发光中心会发出更强的 ML。不仅二元主体中的每个镧系元素离子掺杂剂可以单独发出有效的 ML，压力低得多，低至 2 N，而且 ML 颜色可以通过改变镧系元素掺杂剂轻松调整，例如 Ca 0.66 的绿色_ML Sr _0.30 ZnOS:Er _0.04，来自 Ca _0.66 Sr _0.30 ZnOS:Dy _{0.04 的}橙色 ML，来自 Ca _0.66 Sr _0.30 ZnOS:Sm _{0.04 的红色 ML，以及来自 Ca}_0.66 Sr _0.30的近红外 MLZnOS：Yb _0.04。来自二元 (Ca, Sr)ZnOS 主体的镧系离子掺杂剂参与的多色 ML 可用于应力传感和防伪。

更新日期：2023-03-21

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