Efficient Multi-Luminescence Covering the Visible to Near-Infrared Range in Antimony and Lanthanide Co-Doped Indium-Based Zero-Dimensional Perovskites Nanocrystals,Advanced Optical Materials

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Efficient Multi-Luminescence Covering the Visible to Near-Infrared Range in Antimony and Lanthanide Co-Doped Indium-Based Zero-Dimensional Perovskites Nanocrystals
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2023-05-16 , DOI: 10.1002/adom.202300429
Huwei Li _{1,

2} , Manli Zhang ₁ , Yao Li _{1,

3} , Xinyu Fu _{1,

3} , Jing Feng _{1,

3} , Hongjie Zhang _{1,

2,

3,

4}

Affiliation

Doping impurity ions, such as lanthanide (Ln³⁺) ions, can introduce unique emissions over the visible and near infrared (NIR) region and enrich the optoelectronic properties for lead-free perovskites. Here, tetragonal Cs₃InCl₆:Sb nanocrystals (NCs) with bright self-trapped excitons (STEs) emission have been synthesized. Interestingly, tetragonal Cs₃InCl₆:1%Sb can transform into monoclinic Cs₃InCl₆:1%Sb and orthorhombic Cs₂InCl₅·H₂O:1%Sb under different solvent triggers. Further, a series of Ln³⁺ ions are doped into Cs₃InCl₆:Sb NCs, along with the appearance of Ln³⁺ ions emissions over the visible and NIR region. Benefiting from the different photoluminescence (PL) origins of the STEs and Eu³⁺ emissions, Cs₃InCl₆:Sb,Eu NCs enable varied color delivery and exhibit great potential as anti-counterfeiting materials. Meantime, Cs₃InCl₆:Sb,Nd NCs with strong NIR emissions demonstrate great potential for NIR light-emitting diode (LED) applications. This work not only presents an effective strategy to tune the optoelectronic properties of lead-free perovskites, but also provides insight into applications in the anticounterfeiting and LED fields.

中文翻译：

锑和镧系元素共掺杂铟基零维钙钛矿纳米晶体覆盖可见光到近红外范围的高效多重发光

掺杂杂质离子，例如镧系元素 (Ln ³⁺ ) 离子，可以在可见光和近红外 (NIR) 区域引入独特的发射，并丰富无铅钙钛矿的光电特性。在这里，合成了具有明亮自陷激子（STE）发射的四方Cs ₃ InCl _{6 :Sb纳米晶体（NC）。}有趣的是，四方晶系Cs ₃ InCl ₆ :1%Sb在不同溶剂触发下可以转变为单斜晶系Cs ₃ InCl ₆ :1%Sb和斜方晶系Cs ₂ InCl ₅ ·H _{2 O:1%Sb。}此外，一系列Ln ³⁺离子掺杂到Cs ₃ InCl中₆ :Sb NC，以及可见光和近红外区域Ln ^{3+离子发射的出现。}^{受益于 STE 和 Eu 3+}发射的不同光致发光 (PL) 来源，Cs ₃ InCl ₆ :Sb,Eu NC 能够实现不同的颜色传递，并展现出作为防伪材料的巨大潜力。同时，具有强近红外发射能力的Cs ₃ InCl ₆ :Sb,Nd NCs在近红外发光二极管（LED）应用中展现出巨大的潜力。这项工作不仅提出了一种调整无铅钙钛矿光电性能的有效策略，而且还为防伪和 LED 领域的应用提供了深入的见解。

更新日期：2023-05-16

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