调整金自组装SERS薄膜的关键因素:从性质到结构

IF 0.8 4区物理与天体物理 Q4 OPTICS

Optics and Spectroscopy Pub Date : 2022-02-10 DOI:10.21883/OS.2021.04.50779.1062-20

K. A. Khnykina, M. Baranov, A. A. Babaev, A. V. Baranov, K. Bogdanov

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引用次数: 1

摘要

摘要我们研究了基于金纳米粒子（Au NPs）的自组装等离子体膜（SPF）。我们记录了面积为2025μm2（9×9个点）的强度分布图。我们已经观察到SPF的整个表面均匀增强。因此，在优化SPF的合成时，我们使用了IDM和IDM门的平均强度参数。平均强度是IDM的81个光谱上的平均强度值。闸门是排除10%异常值的跨度。我们发现，在1.00×10–5 M的浓度下观察到最大平均强度。Au NPs浓度的降低会导致平均强度的降低。TOABr和A-u‑NPs浓度的同时降低也导致平均强度的降低。用扫描电镜和原子力显微镜对最佳合成方法得到的薄膜进行了表征。

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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Key Factors for Tuning Au Self-Assembling SERS Films: from Properties to Structure

Abstract We studied self-assembled plasmonic films (SPF) based on gold nanoparticles (Au-NPs). We recorded the intensity distribution maps (IDM) with an area of 2025 μm 2 (9 × 9 points). We have observed uniform enhancement across the entire surface of SPF. Therefore, we used the parameters average intensity of IDM and IDM gate when we optimized the synthesis of SPF. Average intensity is the average intensity value over 81 spectra of the IDM. The gate is the span excluding 10% of the outliers. We have discovered that the maximum average intensity was observed at a concentration of 1.00 × 10 –5 M. A decrease in the concentration of Au-NPs leads to a decrease in the average intensity. A simultaneous decrease in TOABr and A-u‑NPs concentration also leads to a decrease in the average intensity. The film obtained by the optimal synthesis method was characterized using SEM and AFM.

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来源期刊

Optics and Spectroscopy 物理-光谱学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： Optics and Spectroscopy (Optika i spektroskopiya), founded in 1956, presents original and review papers in various fields of modern optics and spectroscopy in the entire wavelength range from radio waves to X-rays. Topics covered include problems of theoretical and experimental spectroscopy of atoms, molecules, and condensed state, lasers and the interaction of laser radiation with matter, physical and geometrical optics, holography, and physical principles of optical instrument making.