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Hollow Gold Nanoparticles Produced by Femtosecond Laser Irradiation.
Castro-Palacio, Juan Carlos; Ladutenko, Konstantin; Prada, Alejandro; González-Rubio, Guillermo; Díaz-Núñez, Pablo; Guerrero-Martínez, Andrés; Fernández de Córdoba, Pedro; Kohanoff, Jorge; Perlado, José Manuel; Peña-Rodríguez, Ovidio; Rivera, Antonio.
Afiliação
  • Castro-Palacio JC; Instituto de Fusión Nuclear "Guillermo Velarde", Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain.
  • Ladutenko K; Grupo de Modelización Interdisciplinar, InterTech, Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, Camino de Vera, s/n, 46022 València, Spain.
  • Prada A; Department of Physics and Engineering, ITMO University, 49 Kronverskii Ave., St. Petersburg 197101, Russian Federation.
  • González-Rubio G; Departamento de Computación e Ingenierías, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Talca 3480112, Chile.
  • Díaz-Núñez P; Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile.
  • Guerrero-Martínez A; Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.
  • Fernández de Córdoba P; Instituto de Fusión Nuclear "Guillermo Velarde", Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain.
  • Kohanoff J; Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.
  • Perlado JM; Grupo de Modelización Interdisciplinar, InterTech, Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, Camino de Vera, s/n, 46022 València, Spain.
  • Peña-Rodríguez O; ASC, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland, United Kingdom.
  • Rivera A; Instituto de Fusión Nuclear "Guillermo Velarde", Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain.
J Phys Chem Lett ; 11(13): 5108-5114, 2020 Jul 02.
Article em En | MEDLINE | ID: mdl-32515961
Metallic hollow nanoparticles exhibit interesting optical properties that can be controlled by geometrical parameters. Irradiation with femtosecond laser pulses has emerged recently as a valuable tool for reshaping and size modification of plasmonic metal nanoparticles, thereby enabling the synthesis of nanostructures with unique morphologies. In this Letter, we use classical molecular dynamics simulations to investigate the solid-to-hollow conversion of gold nanoparticles upon femtosecond laser irradiation. Here, we suggest an efficient method for producing hollow nanoparticles under certain specific conditions, namely that the particles should be heated to a maximum temperature between 2500 and 3500 K, followed by a fast quenching to room temperature, with cooling rates lower than 120 ps. Therefore, we describe the experimental conditions for efficiently producing hollow nanoparticles, opening a broad range of possibilities for applications in key areas, such as energy storage and catalysis.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Espanha

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Espanha