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Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water
K.Zhang; D.S.Ivanov; R.A.Ganeev; G.S.Boltaev; P.S.Krishnendu
2019
发表期刊Nanomaterials
ISSN2079-4991
卷号9期号:5页码:19
摘要We analyzed the formation of the aluminum (Al) nanoparticles (NPs) with triangular shape obtained by ablating Al bulk in liquid using pulses with different durations (5 ns, 200 ps, and 30 fs) and wavelengths (355 nm, 800 nm, and 1064 nm). We report three stages of synthesis and aging of Al NPs: Formation, transformation, and stable stage. The NPs prepared by different pulses are almost identical at the initial stage. The effects of duration and wavelength of the ablation pulses on the aging of NPs are revealed. Pulse duration is determined to be essential for morphological transformation of NPs, while pulse wavelength strongly influences particle sizes. NPs produced by ultra-short pulses have smaller sizes and narrow size distribution. We demonstrate that oxidation and hydrolysis of Al in water are the results of ablation for all pulse durations and wavelengths, which also strongly modify the preferable reaction path of NPs in water, thus affecting the composition and morphology of triangle NPs. The results of modeling of the NPs generation in water due to a 50 ps laser pulse interacting with a thick Al target are presented. Water-based effects in the formation of NPs, their evolution, and solidification are considered from the mechanical and thermophysical points of view. The detailed analysis of the modeling results allowed for determination of the main mechanism responsible for the ablation process followed by the NPs formation.
关键词pulsed laser ablation,aluminum,alumina,aluminum hydroxide,aging,morphology,molecular dynamics,two temperature model,modeling and,simulations,silver nanoparticles,molecular-dynamics,optical-properties,hydrogen,generation,size,metals,surface,liuid,al,temperature,Science & Technology - Other Topics,Materials Science
DOI10.3390/nano9050767
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/62807
专题中国科学院长春光学精密机械与物理研究所
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K.Zhang,D.S.Ivanov,R.A.Ganeev,et al. Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water[J]. Nanomaterials,2019,9(5):19.
APA K.Zhang,D.S.Ivanov,R.A.Ganeev,G.S.Boltaev,&P.S.Krishnendu.(2019).Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water.Nanomaterials,9(5),19.
MLA K.Zhang,et al."Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water".Nanomaterials 9.5(2019):19.
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