Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/329319
Type: Artigo
Title: Computational Modeling For The Ag Nanoparticle Coalescence Process: A Case Of Surface Plasmon Resonance
Computational modeling for the Ag nanoparticle coalescence process: a case of surface plasmon resonance
Author: Faccin, G. M.
San-Miguel, M. A.
Andres, J.
Longo, E.
Silva, E. Z. da
Abstract: Motivated by recent transmission electron microscopy (TEM) experiments on alpha-Ag2WO4, the coalescence process of Ag nanoparticles (NPs) is investigated using molecular dynamics (MD) simulations. These Ag NPs are formed by irradiation of alpha-Ag2WO4 crystals by electrons from a TEM gun. This behavior can be considered as a clear example of surface plasmon resonance (SPR), in which Ag NP coalescence processes are controlled by dipole-dipole interaction forming larger clusters. The interactions between Ag NPs along the coalescence processes are studied using MD simulations with embedded atom method (EAM) effective potentials for Ag. With these choices of methods, coalescence is studied by addressing different scenarios for the interacting NPs, which all could possibly occur in experiments.
Motivated by recent transmission electron microscopy (TEM) experiments on alpha-Ag2WO4, the coalescence process of Ag nanoparticles (NPs) is investigated using molecular dynamics (MD) simulations. These Ag NPs are formed by irradiation of alpha-Ag2WO4 crystals by electrons from a TEM gun. This behavior can be considered as a clear example of surface plasmon resonance (SPR), in which Ag NP coalescence processes are controlled by dipole-dipole interaction forming larger clusters. The interactions between Ag NPs along the coalescence processes are studied using MD simulations with embedded atom method (EAM) effective potentials for Ag. With these choices of methods, coalescence is studied by addressing different scenarios for the interacting NPs, which all could possibly occur in experiments.
Subject: Prata
Nanopartículas metálicas
Dinâmica molecular
Ressonância de plasmon de superfície
Country: Estados Unidos
Editor: American Chemical Society
Citation: Journal Of Physical Chemistry C. Amer Chemical Soc, v. 121, p. 7030 - 7036, 2017.
Rights: fechado
Identifier DOI: 10.1021/acs.jpcc.7b00769
Address: https://pubs.acs.org/doi/10.1021/acs.jpcc.7b00769
Date Issue: 2017
Appears in Collections:IQ - Artigos e Outros Documentos
IFGW - Artigos e Outros Documentos

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