Coordination polymers of thiazolo[5,4-d]thiazoledicarboxylate with Sm(III) and Eu(III) for luminescent thermometry

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

Optical Materials Pub Date : 2025-05-05 DOI:10.1016/j.optmat.2025.117120

Karolyne Santos da Silva , Leonis Lourenço da Luz , Severino Alves Junior , Eduardo H. Lago Falcão

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Abstract

Coordination polymers (CPs) with Sm³⁺ and Eu³⁺ ions and thiazolo[5,4-d]thiazolate (Thz²⁻) ligand were synthesized by the hydrothermal method, and their luminescence properties and thermal sensitivity were investigated. The compounds crystallize with the general formula[(Sm_1-xEu_x)₂(C₆N₂S₂O₄)₃·(H₂O)₈]·4H₂O, with x = 0.1 and 0.2. The compounds containing only Eu³⁺ and Sm³⁺ were also obtained. The analyses emphasized the distinct emission characteristics of Sm³⁺ and Eu³⁺, their energy transfer mechanisms, and their potential for application in luminescent thermometry. By understanding the photophysical processes, this work demonstrates the feasibility of designing efficient luminescent thermometers with high sensitivity over varying temperature range.

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噻唑[5,4-d]噻唑二羧酸盐与Sm（III）和Eu（III）的配位聚合物发光测温

采用水热法合成了Sm3+和Eu3+离子与噻唑[5,4-d]噻唑酸盐（Thz2−）配体的配位聚合物（CPs），并对其发光性能和热敏性进行了研究。化合物结晶为[(Sm1-xEux)2(C6N2S2O4)3·（H2O）8]·4H2O, x = 0.1和0.2。还得到了只含Eu3+和Sm3+的化合物。分析强调了Sm3+和Eu3+不同的发射特性，它们的能量传递机制，以及它们在发光测温中的应用潜力。通过了解光物理过程，本工作证明了设计在不同温度范围内具有高灵敏度的高效发光温度计的可行性。

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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.