在Pb-MOF框架内原位合成CsPbBr3钙钛矿量子点，用于水溶液中Hg2+离子的灵敏检测

IF 4.6 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Materials Science in Semiconductor Processing Pub Date : 2025-08-17 DOI:10.1016/j.mssp.2025.109962

Karthikeyan Manivannan, C.G. Sanjayan, Karthikeyarajan Vinothkumar, R. Shwetharani, R. Geetha Balakrishna

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引用次数: 0

摘要

CsPbBr3纳米晶体（NCs）由于其优异的光电特性，在各种光电子应用中具有很高的应用潜力。环境监测和金属离子传感领域对高效稳定材料的需求不断增长，推动了对创新解决方案的探索。本研究的重点是开发原位Pb-MOF集成水稳定CsPbBr3钙钛矿系统，用于水介质传感应用。此外，该研究旨在将Pb-MOF@CPQDs推进到分层多孔基质中，最终扩大其在传感领域的应用潜力。Pb-MOF@CPQDs复合材料显示出令人印象深刻的检测限（LOD）为157 nM，以及长达20天的卓越稳定性。通过克服目前钙钛矿-水不稳定性的限制，这项工作为环境传感技术的未来发展提供了一个强大的平台。它涉及使用各种表征技术对该CsPbBr3@Pb-MOF （Pb-MOF@CPQDs）异质结构的结构-性能关系进行全面分析。研究阐明了Pb-MOF@CPQDs复合材料的形成机理，并对其水稳定性和传感能力进行了评价。

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In situ synthesis of CsPbBr3 perovskite quantum dots within Pb-MOF framework for sensitive detection of Hg2+ ions in aqueous solutions

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In situ synthesis of CsPbBr3 perovskite quantum dots within Pb-MOF framework for sensitive detection of Hg2+ ions in aqueous solutions

CsPbBr₃ nanocrystals (NCs) have a high potential for use in a variety of optoelectronic applications due to their remarkable optoelectrical characteristics. The increased demand for efficient and stable materials in environmental monitoring and metal ion sensing has driven the search for innovative solutions. This study focuses on developing in-situ Pb-MOF integrated water-stable CsPbBr₃ perovskite system for sensing applications in aqueous media. Additionally, the study aims to advance Pb-MOF@CPQDs into hierarchical porous matrices, ultimately broadening their application potential in the sensing field. The Pb-MOF@CPQDs composite demonstrates an impressive limit of detection (LOD) of 157 nM, along with remarkable stability for up to 20 days. By overcoming the current limitations of perovskite-water instability, this work offers a robust platform for future development in environmental sensing technologies. It involves a comprehensive analysis of the structure-property relationship of this CsPbBr₃@Pb-MOF (Pb-MOF@CPQDs) heterostructure using various characterization techniques. The research elucidates the formation mechanism of Pb-MOF@CPQDs composites and evaluates their water stability and sensing capabilities.

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来源期刊

Materials Science in Semiconductor Processing 工程技术-材料科学：综合

CiteScore

8.00

自引率

4.90%

发文量

780

审稿时长

42 days

期刊介绍： Materials Science in Semiconductor Processing provides a unique forum for the discussion of novel processing, applications and theoretical studies of functional materials and devices for (opto)electronics, sensors, detectors, biotechnology and green energy. Each issue will aim to provide a snapshot of current insights, new achievements, breakthroughs and future trends in such diverse fields as microelectronics, energy conversion and storage, communications, biotechnology, (photo)catalysis, nano- and thin-film technology, hybrid and composite materials, chemical processing, vapor-phase deposition, device fabrication, and modelling, which are the backbone of advanced semiconductor processing and applications. Coverage will include: advanced lithography for submicron devices; etching and related topics; ion implantation; damage evolution and related issues; plasma and thermal CVD; rapid thermal processing; advanced metallization and interconnect schemes; thin dielectric layers, oxidation; sol-gel processing; chemical bath and (electro)chemical deposition; compound semiconductor processing; new non-oxide materials and their applications; (macro)molecular and hybrid materials; molecular dynamics, ab-initio methods, Monte Carlo, etc.; new materials and processes for discrete and integrated circuits; magnetic materials and spintronics; heterostructures and quantum devices; engineering of the electrical and optical properties of semiconductors; crystal growth mechanisms; reliability, defect density, intrinsic impurities and defects.