Matrix-assisted pulsed laser evaporation of polyfluorene thin films (Articolo in rivista)

Type
Label
  • Matrix-assisted pulsed laser evaporation of polyfluorene thin films (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Tunno, T; Caricato, AP; Caruso, ME; Luches, A; Martino, M; Romano, F; Valerini, D; Anni, M (2007)
    Matrix-assisted pulsed laser evaporation of polyfluorene thin films
    in Applied surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tunno, T; Caricato, AP; Caruso, ME; Luches, A; Martino, M; Romano, F; Valerini, D; Anni, M (literal)
Pagina inizio
  • 6461 (literal)
Pagina fine
  • 6464 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 253 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Salento, Phys Dept L3 Grp, Lecce, Italy; Univ Salento, CNR, INFM, Dipartimento Ingn Innovaz,Natl Nanotechnol Lab, I-37100 Lecce, Italy (literal)
Titolo
  • Matrix-assisted pulsed laser evaporation of polyfluorene thin films (literal)
Abstract
  • Poly(9,9-dioctylfluorene) (PF8) thin films have been deposited by matrix-assisted pulsed laser evaporation (MAPLE) using a KrF excimer laser. The influence of the laser fluence (50-500 mJ/cm(2)) and the nature of the solvent (chloroform, toluene, tetrahydrofuran) on the films properties have been studied. The chemical composition of the deposited films was investigated by Fourier transform infrared (FTIR) spectroscopy and compared with the one of spin coated films. To investigate the effect of the deposition parameters on the optical properties of the films, photoluminescence (PL) measurements were performed. Poor structural and optical properties were observed for films deposited starting from chloroform solutions. When using toluene as solvent, the spectra characteristics improved with increasing laser fluence, while wide PL spectra were observed. The characteristic emission bands of the PF8 polymer were nicely detected for films deposited starting from a tetrahydrofuran (THF) solution. Moreover, in this last case, the PF8 structure is preserved at high laser fluences, too. (C) 2007 Elsevier B.V. All rights reserved. (literal)
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