Bimetallic Ln(III)-MOF (Ln = Gd, Tb) with excitation wavelength-dependent luminescence properties for advanced anti-counterfeiting

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-23 DOI:10.1016/j.optmat.2025.117084

Wei Gao, Zihan Chen, Lu Zhang, Guoxian Gu, Wenjun Zhang

引用次数: 0

Abstract

To develop advanced anti-counterfeiting materials with multi-mode emission is interesting. In this study, a series of lanthanide bimetallic organic frameworks, Gd_1-xTb_x-BPTA (x = 0.001–0.03), were prepared via solvothermal methods. These materials can achieve color tunability by adjusting the proportion of lanthanide metals. Notably, Gd_1-xTb_x-BPTA (x = 0.001, 0.002) exhibits wavelength-dependent luminescence, emitting bright green emission at 254 nm UV irradiation and blue emission at 365 nm UV irradiation. Additionally, their luminescence shows negligible degradation after prolonged ambient exposure, highlighting the material's potential applications in anti-counterfeiting technologies.

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具有激发波长依赖发光特性的双金属Ln(III)-MOF （Ln = Gd, Tb）先进防伪材料

开发先进的多模发射防伪材料是一个有意义的课题。本研究采用溶剂热法制备了一系列镧系双金属有机骨架Gd1-xTbx-BPTA （x = 0.001-0.03）。这些材料可以通过调整镧系金属的比例来实现颜色的可调性。值得注意的是，Gd1-xTbx-BPTA （x = 0.001, 0.002）表现出波长依赖的发光特性，在254 nm紫外照射下发射出亮绿色，在365 nm紫外照射下发射出蓝色。此外，在长时间的环境暴露后，它们的发光表现出可以忽略不计的退化，突出了材料在防伪技术中的潜在应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.