http://www.cnr.it/ontology/cnr/individuo/prodotto/ID36476
Study of temperature dependence and angular distribution of poly(9,9-dioctylfluorene) polymer films deposited by matrix-assisted pulsed laser evaporation (MAPLE) (Articolo in rivista)
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- Study of temperature dependence and angular distribution of poly(9,9-dioctylfluorene) polymer films deposited by matrix-assisted pulsed laser evaporation (MAPLE) (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Alternative label
Caricato AP, Anni M, Manera MG, Martino M, Rella R, Romano F, Tunno T, Valerini D (2009)
Study of temperature dependence and angular distribution of poly(9,9-dioctylfluorene) polymer films deposited by matrix-assisted pulsed laser evaporation (MAPLE)
in Applied surface science
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Caricato AP, Anni M, Manera MG, Martino M, Rella R, Romano F, Tunno T, Valerini D (literal)
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- ISI Web of Science (WOS) (literal)
- Titolo
- Study of temperature dependence and angular distribution of poly(9,9-dioctylfluorene) polymer films deposited by matrix-assisted pulsed laser evaporation (MAPLE) (literal)
- Abstract
- Poly(9,9-dioctylfluorene) (PFO) polymer films were deposited by matrix-assisted pulsed laser evaporation (MAPLE) technique. The polymer was diluted (0.5 wt%) in tetrahydrofuran and, once cooled to liquid nitrogen temperature, it was irradiated with a KrF excimer laser. 10,000 laser pulses were used to deposit PFO films on < 100 > Si substrates at different temperatures (-16, 30, 50 and 70 degrees C). One PFO film was deposited with 16,000 laser pulses at a substrate temperature of 50 degrees C. The morphology, optical and structural properties of the films were investigated by SEM, AFM, PL and FTIR spectroscopy. SEM inspection showed different characteristic features on the film surface, like deflated balloons, droplets and entangled polymer filaments. The roughness of the films was, at least partially, controlled by substrate heating, which however had the effect to reduce the deposition rate. The increase of the laser pulse number modified the target composition and increased the surface roughness. The angular distribution of the material ejected from the target confirmed the forward ejection of the target material. PFO films presented negligible modification of the chemical structure respect to the bulk material. (literal)
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