聚苯乙烯纳米纤维上ch3 nh3 PbBr 3钙钛矿量子点荧光探针对铜离子的检测

IF 1.2 4区物理与天体物理 Q4 OPTICS

Journal of Modern Optics Pub Date : 2023-04-16 DOI:10.1080/09500340.2023.2266058

Sizhong Yi, Yuanhao Huang, Jie Zou, Yuheng Wang, Jiawen Jian, Qinghui Jin, Xiaowei Zhang, Xin Zhang

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引用次数: 0

摘要

摘要近年来，金属卤化物钙钛矿量子点(MHPQDs)由于其优异的光电性能和高表面活性而引起了人们对传感活动的极大兴趣。针对重金属检测，我们提出了一种基于MAPbBr3 MHPQDs的超灵敏关闭荧光探针，用于测量有机溶剂中的铜离子。低检出限(LOD)为5.6nM，检测范围为0 ~ 100nM。为了实现这种高灵敏度，引入了一层电纺聚苯乙烯(PS)纳米纤维薄膜作为MHPQDs的结构支撑，从而使灵敏度提高了两个数量级。文中还讨论了淬火机理。我们认为Cu2+和钙钛矿量子点之间的电子转移效应是我们的原型器件中关断传感的主要贡献。关键词:MHPQDsPSElectrospunCu2+JEL代码:71.35 -y71.35. lk71.36;+c致谢四中易:方法论，形式分析，写作，原稿。张欣:撰稿、构思、审稿编辑、资金获取。黄元昊:数据收集，资料准备。邹杰:测试系统优化，资金获取。王玉恒:审稿编辑，数据分析。贾文健:审稿编辑，资金获取。金庆辉:实验建议。张晓伟:审稿编辑，资金获取。披露声明作者未报告潜在的利益冲突。本研究得到国家自然科学基金资助(国家自然科学基金资助号:61971251,61974078,61871243)。

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A fluorescent probe of CH ₃ NH ₃ PbBr ₃ perovskite quantum dots on polystyrene nanofibres for the detection of copper ions

AbstractRecently, metal halide perovskite quantum dots (MHPQDs) have attracted considerable interest in sensing activities due to their excellent optoelectronic properties and high surface activity. Here, aiming for heavy metal detection, we proposed an ultrasensitive turn-off fluorescent probe based on MAPbBr3 MHPQDs for the measurement of copper ions in an organic solvent. A low limit of detection (LOD) of 5.6nM was achieved and the test range was recorded from 0nM to 100nM. In order to achieve this high sensitivity, a thin film layer of electrospun polystyrene(PS) nanofibre was introduced for the structural support of MHPQDs, by which the sensitivity increased two orders of magnitude. The quenching mechanism is also discussed in the paper. We believe the electron transfer effect between Cu2+ and perovskite QDs made the main contribution for turn off sensing in our prototype device.KEYWORDS: MHPQDsPSElectrospunCu2+JEL CODE KEYWORDS: 71.35.-y71.35.Lk71.36.+c AcknowledgementsSizhong Yi: methodology, formal analysis, writing, original draft. Xin Zhang: writing draft, idea, review & editing, funding acquisition. Yuanhao Huang: data collection, material preparation. Jie Zou: testing system optimizing, funding acquisition. Yuheng Wang: review & editing, data analysis. Jiawen Jian: review & editing, funding acquisition. Qinghui Jin: experiment advice. Xiaowei Zhang: review & editing, funding acquisition.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by National Natural Science Foundation of China (NSFC grant numbers 61971251, 61974078, and 61871243).

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来源期刊

Journal of Modern Optics 物理-光学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

2.6 months

期刊介绍： The journal (under its former title Optica Acta) was founded in 1953 - some years before the advent of the laser - as an international journal of optics. Since then optical research has changed greatly; fresh areas of inquiry have been explored, different techniques have been employed and the range of application has greatly increased. The journal has continued to reflect these advances as part of its steadily widening scope. Journal of Modern Optics aims to publish original and timely contributions to optical knowledge from educational institutions, government establishments and industrial R&D groups world-wide. The whole field of classical and quantum optics is covered. Papers may deal with the applications of fundamentals of modern optics, considering both experimental and theoretical aspects of contemporary research. In addition to regular papers, there are topical and tutorial reviews, and special issues on highlighted areas. All manuscript submissions are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. General topics covered include: • Optical and photonic materials (inc. metamaterials) • Plasmonics and nanophotonics • Quantum optics (inc. quantum information) • Optical instrumentation and technology (inc. detectors, metrology, sensors, lasers) • Coherence, propagation, polarization and manipulation (classical optics) • Scattering and holography (diffractive optics) • Optical fibres and optical communications (inc. integrated optics, amplifiers) • Vision science and applications • Medical and biomedical optics • Nonlinear and ultrafast optics (inc. harmonic generation, multiphoton spectroscopy) • Imaging and Image processing