Efficient Multi‐Luminescence Covering the Visible to Near‐Infrared Range in Antimony and Lanthanide Co‐Doped Indium‐Based Zero‐Dimensional Perovskites Nanocrystals

Author:

Li Huwei12,Zhang Manli1,Li Yao13,Fu Xinyu13,Feng Jing13,Zhang Hongjie1234ORCID

Affiliation:

1. State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 China

2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun Jilin 130022 China

3. School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China

4. Department of Chemistry Tsinghua University Beijing 100084 China

Abstract

AbstractDoping 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.

Funder

National Natural Science Foundation of China

Youth Innovation Promotion Association of the Chinese Academy of Sciences

Publisher

Wiley

Subject

Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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