Multimodal anti-counterfeiting based on CsPbBr<sub>3</sub>/Er<sup>3+</sup>-codoped tellurite glass phosphor

This work presents a novel, to the best of our knowledge, multimodal anti-counterfeiting (AC) phosphor based on CsPbBr<sub>3</sub>/Er<sup>3+</sup>-codoped tellurite glass powders. Benefiting from the sensitization effect of CsPbBr<sub>3</sub> nanocrystals (NCs) on Er<sup>3+</sup>, the photoluminescence (PL) excitation band of Er<sup>3+</sup> is greatly extended, permitting far more excitation channels that offer unique near-infrared (NIR) emission properties absent in conventional Er<sup>3+</sup>-doped phosphors. This innovation enables encrypted information identification invisible to the naked eye and smartphones but detectable by commercial NIR cameras, with additional upconversion luminescence under 980 nm excitation for smartphone-based detection. Our study explores the energy transfer mechanisms between CsPbBr<sub>3</sub> and Er<sup>3+</sup>, demonstrating the potential of these glasses in advanced optical and security technologies.

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Publication Details

Journal
Optics Letters
Published
2025-04-24
DOI
https://doi.org/10.1364/ol.560422
Citations
1
Primary Topic
Perovskite Materials and Applications
Type
article
Field-Weighted Citation Impact
0.73

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article

Multimodal anti-counterfeiting based on CsPbBr3/Er3+-codoped tellurite glass phosphor

Zhigang Gao, Jing Ren, Luyue Niu, Wenhao Li et al.
1 citations
Optics Letters
Perovskite Materials and Applications
0.73
article

Multimodal anti-counterfeiting based on CsPbBr3/Er3+-codoped tellurite glass phosphor

Zhigang Gao, Jing Ren, Luyue Niu, Wenhao Li, Liang Li, Yudong Zhang, Yu Gao, Ziyang Wu
article en
1 citations

Abstract

This work presents a novel, to the best of our knowledge, multimodal anti-counterfeiting (AC) phosphor based on CsPbBr<sub>3</sub>/Er<sup>3+</sup>-codoped tellurite glass powders. Benefiting from the sensitization effect of CsPbBr<sub>3</sub> nanocrystals (NCs) on Er<sup>3+</sup>, the photoluminescence (PL) excitation band of Er<sup>3+</sup> is greatly extended, permitting far more excitation channels that offer unique near-infrared (NIR) emission properties absent in conventional Er<sup>3+</sup>-doped phosphors. This innovation enables encrypted information identification invisible to the naked eye and smartphones but detectable by commercial NIR cameras, with additional upconversion luminescence under 980 nm excitation for smartphone-based detection. Our study explores the energy transfer mechanisms between CsPbBr<sub>3</sub> and Er<sup>3+</sup>, demonstrating the potential of these glasses in advanced optical and security technologies.

Optics LettersVol. 50(11)
Macau University of Science and Technology (MO), Wuhan University of Technology (CN), Taishan University (CN), Division of Materials Science and Engineering (AU), Yibin University (CN)
National Natural Science Foundation of China, Natural Science Foundation of Heilongjiang Province
Openalex Percentile: Top 29%
Perovskite Materials and Applications
0.73
DOISourceOpenAlex
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Multimodal anti-counterfeiting based on CsPbBr<sub>3</sub>/Er<sup>3+</sup>-codoped tellurite glass phosphor — Zhigang Gao, Jing Ren, et al. · Optics Letters (2025) | TGRS Research Map | TGRS