Effects of laser fluence and liquid media on preparation of small Ag nanoparticles by laser ablation in liquid

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dc.contributor.authorNascimento, Rubens Maribondo do
dc.contributor.authorMoura, Caroline Gomes
dc.contributor.authorPereira, Rafael Santiago Floriani
dc.contributor.authorAndritschky, Martin
dc.contributor.authorLopes, Augusto Luís Barros
dc.contributor.authorGrilo, João Paulo de Freitas
dc.contributor.authorSilva, Filipe Samuel
dc.date.accessioned2021-12-23T12:06:06Z
dc.date.available2021-12-23T12:06:06Z
dc.date.issued2017-12-01
dc.description.resumoThis study aims to assess a method for preparation of small and highly stable Ag nanoparticles by nanosecond laser ablation in liquid. Effect of liquid medium and laser fluence on the size, morphology and structure of produced nanoparticles has been studied experimentally. Pulses of a Nd:YAG laser of 1064 nm wavelength at 35 ns pulse width at different fluences were employed to irradiate the silver target in different environments (water, ethanol and acetone). The UV-Visible absorption spectra of nanoparticles exhibit surface plasmon resonance absorption peak in the UV region. STEM and TEM micrographs were used to evaluate the size and shape of nanoparticles. The stability of silver colloids in terms of oxidation at different liquid media was analyzed by SAED patterns. The results showed that characteristics of Ag nanoparticles and their production rate were strongly influenced by varying laser fluence and liquid medium. Particles from 2 to 80 nm of diameter were produced using different conditions and no oxidation was found in ethanol and acetone media. This work puts in evidence a promising approach to produce small nanoparticles by using high laser fluence energypt_BR
dc.identifier.citationMOURA, Caroline Gomes; PEREIRA, Rafael Santiago Floriani; ANDRITSCHKY, Martin; LOPES, Augusto Luís Barros; GRILO, João Paulo de Freitas; NASCIMENTO, Rubens Maribondo do; SILVA, Filipe Samuel. Effects of laser fluence and liquid media on preparation of small Ag nanoparticles by laser ablation in liquid. Optics & Laser Technology, [S.L.], v. 97, p. 20-28, dez. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0030399217301007?via%3Dihub. Acesso em: 05 abr. 2021. http://dx.doi.org/10.1016/j.optlastec.2017.06.007.pt_BR
dc.identifier.doi10.1016/j.optlastec.2017.06.007
dc.identifier.issn0030-3992
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45537
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectLaser fluencept_BR
dc.subjectLiquid mediapt_BR
dc.subjectSmall Ag nanoparticlespt_BR
dc.subjectLaser ablationpt_BR
dc.subjectNd:YAGpt_BR
dc.titleEffects of laser fluence and liquid media on preparation of small Ag nanoparticles by laser ablation in liquidpt_BR
dc.typearticlept_BR

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