当前位置：
X-MOL 学术
›
J. Anal. At. Spectrom.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
The significance of nano-shapes in nanoparticle-enhanced laser-induced breakdown spectroscopy
Journal of Analytical Atomic Spectrometry ( IF 3.1 ) Pub Date : 2020-10-02 , DOI: 10.1039/d0ja00329h Mahmoud Abdelhamid 1, 2, 3, 4 , Yasser A. Attia 1, 2, 3, 4 , Mohamed Abdel-Harith 1, 2, 3, 4
Journal of Analytical Atomic Spectrometry ( IF 3.1 ) Pub Date : 2020-10-02 , DOI: 10.1039/d0ja00329h Mahmoud Abdelhamid 1, 2, 3, 4 , Yasser A. Attia 1, 2, 3, 4 , Mohamed Abdel-Harith 1, 2, 3, 4
Affiliation
|
The effect of the shape of the nanoparticles on the nanoparticle-enhanced LIBS (NELIBS) signal should be clarified. The present study reports on the effect of the silver (silver chloride) nanoparticle shape (nanospheres, nanocubes, and nanowires) on the LIBS signal for different target materials; two metals (aluminum and zinc) and one semiconductor (silicon). The shape enhancement factor and the plasma parameters, namely plasma temperature and electron density, have also been evaluated. Silver nanoparticles have been characterized using different techniques, including SEM, UV-vis, and XRD. The results showed that the clusters formed in the silver nanowires and nanocubes play an essential role in the laser pulse's absorption mechanism and, consequently, enhance the LIBS signal. Nanowires followed by nanocubes showed better enhancement than nanospheres, confirmed by the shape-dependent enhancement factor. However, the laser-induced plasma parameters (plasma temperature and electron density) have not been affected much by the nano-shape change.
中文翻译：
纳米形状在纳米颗粒增强的激光诱导击穿光谱中的意义
应该阐明纳米颗粒形状对纳米颗粒增强LIBS（NELIBS）信号的影响。本研究报告了不同目标材料的银（氯化银）纳米颗粒形状（纳米球，纳米立方体和纳米线）对LIBS信号的影响；两种金属（铝和锌）和一种半导体（硅）。还评估了形状增强因子和等离子体参数，即等离子体温度和电子密度。银纳米颗粒已使用不同的技术进行了表征，包括SEM，UV-vis和XRD。结果表明，在银纳米线和纳米立方体中形成的簇在激光脉冲的吸收机制中起着至关重要的作用，因此增强了LIBS信号。纳米线及其后的纳米立方体显示出比纳米球更好的增强作用，这由形状相关的增强因子所证实。然而，激光诱导的等离子体参数（等离子体温度和电子密度）并未受到纳米形状变化的很大影响。
更新日期：2020-11-03
中文翻译：
纳米形状在纳米颗粒增强的激光诱导击穿光谱中的意义
应该阐明纳米颗粒形状对纳米颗粒增强LIBS（NELIBS）信号的影响。本研究报告了不同目标材料的银（氯化银）纳米颗粒形状（纳米球，纳米立方体和纳米线）对LIBS信号的影响；两种金属（铝和锌）和一种半导体（硅）。还评估了形状增强因子和等离子体参数，即等离子体温度和电子密度。银纳米颗粒已使用不同的技术进行了表征，包括SEM，UV-vis和XRD。结果表明，在银纳米线和纳米立方体中形成的簇在激光脉冲的吸收机制中起着至关重要的作用，因此增强了LIBS信号。纳米线及其后的纳米立方体显示出比纳米球更好的增强作用，这由形状相关的增强因子所证实。然而，激光诱导的等离子体参数（等离子体温度和电子密度）并未受到纳米形状变化的很大影响。
京公网安备 11010802027423号