利用Cs2NaErCl6: Yb3+， Dy3+双钙钛矿微晶的双模温度传感和荧光防伪

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-05-05 DOI:10.1016/j.jlumin.2025.121286

Chenglin Gong , Lin Lin , Yingzhen Wu , Yanan Zhang , Xin Chen , Zhuohong Feng , Zhezhe Wang , Yantang Huang , Zhiqiang Zheng

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引用次数: 0

摘要

随着温度传感和荧光防伪应用需求的不断增加，迫切需要开发具有多峰荧光和高稳定性的新型环保材料。本研究通过简单的“溶解-干燥”方法成功合成了Cs2NaErCl6: Yb3+， Dy3+双钙钛矿微晶（MCs）。采用荧光强度比技术评估样品的温度传感性能，获得的最大相对灵敏度分别为3.27% /K（上转换）和1.23% /K（下转换）。由于这些MCs在不同的激励下呈现黄色或绿色的发射色，我们设计了一种先进的基于MCs的防伪图案，大大提高了防伪的安全性。上述结果表明，该样品是一种具有高灵敏度的双模温度传感材料。此外，它在双模荧光防伪方面也有很大的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Dual-mode temperature sensing and fluorescent anti-counterfeiting utilizing Cs2NaErCl6: Yb3+, Dy3+ double perovskite microcrystals

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Dual-mode temperature sensing and fluorescent anti-counterfeiting utilizing Cs2NaErCl6: Yb3+, Dy3+ double perovskite microcrystals

With the increasing demand for temperature sensing and fluorescent anti-counterfeiting applications, there is an urgent need to develop new environmentally friendly materials with multi-peak fluorescence and high stability. In this study, Cs₂NaErCl₆: Yb³⁺, Dy³⁺ double perovskite microcrystals (MCs) are successfully synthesized via a simple “dissolve-dry” method. The fluorescence intensity ratio technique is employed to assess the temperature sensing performance of these samples, achieving maximum relative sensitivity are 3.27 %/K (up-conversion) and 1.23 %/K (down-conversion), respectively. Because these MCs presents yellow or green emission colors under different excitation, we design an advanced anti-counterfeiting pattern based on the MCs, which greatly improving the security of anti-counterfeiting. The above results show that the sample is dual-mode temperature sensing materials with high sensitivity. In addition, it has great application prospects in dual-mode fluorescent anti-counterfeiting.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.