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Synthesis of Si/SiO_2 nanoparticles using nanosecond laser ablation of silicate-rich garnet in water

机译:纳秒激光烧蚀富含硅酸盐的石榴石在水中合成Si / SiO_2纳米粒子

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摘要

During the nanosecond pulsed laser ablation of naturally occurring garnet in water, silicon and silicon dioxide nanoparticles are synthesized. These nanoparticles have an average size of 25 nm and 23 nm when the target is ablated for 20 and 30 min, respectively. The synthesized silicon nanoparticles are crystalline in nature and have cubic structure with 3.0 A interplanar distance. The effects of laser ablation time on the yield of synthesized nanoparticles in the solution are investigated and it is observed that the optimum ablation time of 20 min is required for the efficient synthesis of silicon nanoparticles while operating at an input pulse energy of 90 mJ. We also report the elemental analysis of the garnet using laser induced breakdown spectroscopy. (C) 2017 Elsevier B.V. All rights reserved.
机译:在纳秒脉冲激光烧蚀水中天然石榴石的过程中,合成了硅和二氧化硅纳米颗粒。当靶材分别消融20分钟和30分钟时,这些纳米粒子的平均大小分别为25 nm和23 nm。合成的硅纳米粒子本质上是结晶的,并且具有3.0 A的晶面间距的立方结构。研究了激光烧蚀时间对溶液中合成纳米颗粒产率的影响,并且观察到,在输入脉冲能量为90 mJ的情况下,有效合成硅纳米颗粒需要20分钟的最佳烧蚀时间。我们还报告了使用激光诱导击穿光谱法对石榴石的元素分析。 (C)2017 Elsevier B.V.保留所有权利。

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