TiO2 nanoparticles obtained by laser ablation in water: influence of pulse energy and duration on the crystalline phase (Articolo in rivista)

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  • TiO2 nanoparticles obtained by laser ablation in water: influence of pulse energy and duration on the crystalline phase (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jallcom.2014.11.117 (literal)
Alternative label
  • E. Giorgetti (a); M. Muniz Miranda (b); S. Caporali (b); P. Canton (c); P. Marsili (a,d); C. Vergari (d); F. Giammanco (d) (2014)
    TiO2 nanoparticles obtained by laser ablation in water: influence of pulse energy and duration on the crystalline phase
    in Journal of alloys and compounds
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • E. Giorgetti (a); M. Muniz Miranda (b); S. Caporali (b); P. Canton (c); P. Marsili (a,d); C. Vergari (d); F. Giammanco (d) (literal)
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  • Available online 1 December 2014. (literal)
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  • http://www.sciencedirect.com/science/article/pii/S0925838814027650 (literal)
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  • in_press (literal)
Rivista
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  • (a) Istituto dei Sistemi Complessi (ISC) CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino (Italy) (b) Dipartimento di Chimica \"Ugo Schiff\", Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (Italy) (c) Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Via Torino, 30170 Venezia-Mestre (Italy) (d)Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa (Italy) (literal)
Titolo
  • TiO2 nanoparticles obtained by laser ablation in water: influence of pulse energy and duration on the crystalline phase (literal)
Abstract
  • We fabricated Ti oxide nanoparticles by laser ablation of a Ti target in doubly deionized water with ps or ns pulses at a laser wavelength of 1064 nm. Electron microscopy, Raman, X-ray diffraction and X-ray photoelectron spectroscopy showed that, while with ns pulses the dominant oxide phase is rutile, with ps pulses anatase is the most abundant form in an intermediate energy window centered around 25 mJ per pulse. This experimental behavior can be described by a theoretical model which calculates the pressure and temperature evolution of the ablated material and, from this, the rutile and anatase yield. (literal)
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