Soft Nanopatterning on Light-Emitting Inorganic-Organic Composites

In this work we demonstrate the nanopatterning of nanocomposites made by luminescent zinc oxide nanoparticles and light‐emitting conjugated polymers by means of soft molding lithography. Vertical nanofluidics is exploited to overcome the polymer transport difficulties intrinsic in materials incorpor...

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Bibliographic Details
Published in:Advanced functional materials 2008-09, Vol.18 (18), p.2692-2698
Main Authors: Persano, Luana, Molle, Sandra, Girardo, Salvatore, Neves, Antonio A. R., Camposeo, Andrea, Stabile, Ripalta, Cingolani, Roberto, Pisignano, Dario
Format: Article
Language:English
Subjects:
Inorganic-Organic hybrid materials
Light-emitting materials
Nanocomposites
Nanopatterning
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Summary:In this work we demonstrate the nanopatterning of nanocomposites made by luminescent zinc oxide nanoparticles and light‐emitting conjugated polymers by means of soft molding lithography. Vertical nanofluidics is exploited to overcome the polymer transport difficulties intrinsic in materials incorporating nanocrystals, and the rheology, fluorescence, absolute quantum yield, and emission directionality of the nanostructured composites are investigated. We study the effect of patterned gratings on the directionality of light emitted from the nanocomposites, finding evidence of the enhancement of forward emitted light, due to the printed wavelength‐scale periodicity. These results open new possibilities for the realization of nanopatterned devices based on hybrid organic‐inorganic systems. The nanopatterning of nanocomposites made by luminescent inorganic nanocrystals and light‐emitting conjugated polymers is demonstrated by soft moulding lithography. Vertical nanofluidics is exploited to overcome the polymer transport difficulties intrinsic in materials incorporating nanocrystals, and the rheology, fluorescence, absolute quantum yield, and emission directionality of the nanostructured composites are investigated.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.200800244