Quantitative characterization of the lateral distribution of gold nanoparticles in polystyrene nanocomposite thin films by laser-induced breakdown spectroscopy elemental mapping

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-04-14 DOI:10.1016/j.apsusc.2025.163276

F.A. Casian-Plaza , O. Urbán , Á. Bélteki , M. Aladi , M. Kedves , A. Bonyár , J. Kopniczky , M. Veres , G. Galbács

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Abstract

An analytical method based on nanosecond-pulse laser-induced breakdown spectroscopy elemental mapping was developed and tested for the assessment of the quantitative lateral distribution of nanoparticles in polymer nanocomposite thin films. A study of the effect of measurement conditions was carried out and the laser ablation behaviour of polystyrene thin films was also studied. It was established that using 266 nm laser wavelength and laser pulse energies upwards from 10 mJ, the method is applicable for the analysis of polystyrene thin films less than about 450 nm in thickness and for gold mass concentrations in the range of about 3 to 700 ng·mm⁻². The capabilities of the method were also demonstrated in applications in which quantitative imaging of patterned samples with gold nanoparticle concentration gradients was done with 10 % or less error. It was also demonstrated that the method can also provide particle concentration distribution data in practical cases when the size of the nanoparticles is known. The method is especially useful in cases when fairly large areas (cm² or larger) need to be analyzed with a spatial resolution of 100 μm or better, and its advantage is that it can also be adapted to any shape or composition of nanoparticles.

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利用激光诱导击穿光谱元素图谱对聚苯乙烯纳米复合薄膜中金纳米粒子的横向分布进行定量表征

提出了一种基于纳秒脉冲激光诱导击穿光谱元素映射的聚合物纳米复合薄膜中纳米颗粒横向定量分布的分析方法。研究了测量条件的影响，并对聚苯乙烯薄膜的激光烧蚀行为进行了研究。结果表明，在266 nm的激光波长和10 mJ以上的激光脉冲能量下，该方法适用于分析厚度小于450 nm的聚苯乙烯薄膜和质量浓度在3 ~ 700 ng·mm−2之间的金。该方法的能力也在应用中得到证明，其中对带有金纳米颗粒浓度梯度的图案样品进行定量成像，误差不超过10%。在实际情况下，当纳米颗粒的尺寸已知时，该方法也可以提供粒子浓度分布数据。当需要以100 μm或更好的空间分辨率分析相当大的区域（cm2或更大）时，该方法特别有用，其优点是它还可以适应纳米颗粒的任何形状或组成。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.