Ultrashort Pulsed Laser Ablation of Magnesium Diboride: Plasma Characterization and Thin Films Deposition

Autor: Agostino Galasso, Roberto Teghil, Angela De Bonis, Antonio Santagata
Rok vydání: 2015
Předmět:
Zdroj: Journal of Nanomaterials
(2015): 596328. doi:10.1155/2015/596328
info:cnr-pdr/source/autori:De Bonis, Angela; Galasso, Agostino; Santagata, Antonio; Teghil, Roberto/titolo:Ultrashort Pulsed Laser Ablation of Magnesium Diboride: Plasma Characterization and Thin Films Deposition/doi:10.1155%2F2015%2F596328/rivista:Journal of Nanomaterials (Print)/anno:2015/pagina_da:596328/pagina_a:/intervallo_pagine:596328/volume
Journal of Nanomaterials, Vol 2015 (2015)
ISSN: 1687-4129
1687-4110
Popis: A MgB2target has been ablated by Nd:glass laser with a pulse duration of 250 fs. The plasma produced by the laser-target interaction, showing two temporal separated emissions, has been characterized by time and space resolved optical emission spectroscopy and ICCD fast imaging. The films, deposited on silicon substrates and formed by the coalescence of particles with nanometric size, have been analyzed by scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, micro-Raman spectroscopy, and X-ray diffraction. The first steps of the films growth have been studied by Transmission Electron Microscopy. The films deposition has been studied by varying the substrate temperature from 25 to 500°C and the best results have been obtained at room temperature.
Databáze: OpenAIRE