http://www.cnr.it/ontology/cnr/individuo/prodotto/ID39519
TiO2 nanocrystals MEH-PPV composite thin films as photoactive material (Articolo in rivista)
- Type
- Label
- TiO2 nanocrystals MEH-PPV composite thin films as photoactive material (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Alternative label
A. Petrella, M. Tamborra, P.D. Cozzoli, M.L. Curri, M. Striccoli, P. Cosma, G.M. Farinola, F. Babudri, F. Naso, A. Agostiano (2004)
TiO2 nanocrystals MEH-PPV composite thin films as photoactive material
in Thin solid films (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A. Petrella, M. Tamborra, P.D. Cozzoli, M.L. Curri, M. Striccoli, P. Cosma, G.M. Farinola, F. Babudri, F. Naso, A. Agostiano (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
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- Dipartimento di Chimica, Universita` di Bari, via Orabona 4, I-70126 Bari, Italy
CNR IPCF Sez. Bari cyo Dipartimento di Chimica, Universita` di Bari, Bari, Italy
CNR ICCOM Sez. Bari cyo Dipartimento Chimica, Universita` di Bari, Via Orabona 4, I-70126 Bari, Italy (literal)
- Titolo
- TiO2 nanocrystals MEH-PPV composite thin films as photoactive material (literal)
- Abstract
- The optoelectronic processes occurring in colloidal anatase TiO2 nanocrystalsyMEH-PPV conjugated polymer blends are
reported. Composite films were prepared by spin-coating an homogeneous solution of low molecular weight MEH-PPV and
surfactant-capped TiO2 nanocrystals onto low resistivity ITO substrates. Both nearly spherical and rod-like titania nanoparticles
were used in the hybrid structures and the resulting blends comparatively examined, as a function of TiO2 nanoparticle morphology.
The photoinduced charge transfer and recombination processes at the interface between the two components were studied by
steady-state optical spectroscopy and photoelectrochemical experiments. A significant fluorescence quenching of the polymer
occurred in MEH-PPVyTiO2 nanorods hetero-junctions and higher photoactivity of as prepared blends compared to the single
components was observed and explained. (literal)
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