Stable SHG from in situ grown oriented nanocrystals of [(E)-N,N-dimethylamino-N'-methylstilbazolium][p-toluenesulfonate] in a PMMA film
Articolo
Data di Pubblicazione:
2010
Citazione:
Stable SHG from in situ grown oriented nanocrystals of [(E)-N,N-dimethylamino-N'-methylstilbazolium][p-toluenesulfonate] in a PMMA film / R. Macchi, E. Cariati, D. Marinotto, D. M. Roberto, E. Tordin, R. Ugo, R. Bozio, M. Cozzuol, D. Pedron, G. Mattei. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - 20:10(2010), pp. 1885-1890. [10.1039/B922185A]
Abstract:
Poly(methyl methacrylate) (PMMA) films with 4 wt% of the ionic second order NLO chromophore [(E)-N,N-dimethylamino-N'-methylstilbazolium][p-toluenesulfonate] (DAST), obtained by spin-coating of CHCl3-CH3OH (2/1) solutions, show in situ growth of homogeneously dispersed oriented nanocrystals with sizes of less than 100 nm, as supported by TEM and GIXRD evidence. This is achieved by a two step process: corona poling at 8 kV and 90 °C followed, in the absence of electric field, by controlled thermal annealing up to 140 °C. The final film shows a significant and enduring second harmonic generation (SHG) at room temperature
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
R. Macchi, E. Cariati, D. Marinotto, D.M. Roberto, E. Tordin, R. Ugo, R. Bozio, M. Cozzuol, D. Pedron, G. Mattei
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