http://www.cnr.it/ontology/cnr/individuo/prodotto/ID170546
Optical properties of hybrid composites based on highly luminescent CdS nanocrystals in polymer (Articolo in rivista)
- Type
- Label
- Optical properties of hybrid composites based on highly luminescent CdS nanocrystals in polymer (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Alternative label
Tamborra M., Striccoli M., Comparelli R., Curri M. L., Petrella A., Agostiano A. (2004)
Optical properties of hybrid composites based on highly luminescent CdS nanocrystals in polymer
in Nanotechnology (Bristol. Print)
(literal)
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- Tamborra M., Striccoli M., Comparelli R., Curri M. L., Petrella A., Agostiano A. (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1 Dipartimento di Chimica, Universit`a di Bari, via Orabona 4, I-70126 Bari, Italy
CNR IPCF Sezione Bari c/o Dipartimento di Chimica, Universit`a di Bari, Italy (literal)
- Titolo
- Optical properties of hybrid composites based on highly luminescent CdS nanocrystals in polymer (literal)
- Abstract
- High quality luminescent CdS nanocrystals (NCs), with band edge emission
tunable in the blue region of the visible spectrum, were synthesized by
means of thermal decomposition of precursors with oleic acid as the
surfactant and incorporated in optically transparent polystyrene (PS) and
poly(methyl methacrylate) (PMMA). The optical properties of the obtained
nanocomposite films were investigated by absorption and emission
spectroscopies. Enhancement of the band edge luminescence of CdS
quantum dots was observed in both polymer matrices and the fluorescence
of the composites retained narrow emission profiles. Capping exchange at
the NC surface with octylamine, demonstrated to improve the luminescence
properties in solution, was performed in order to investigate the role played
by surface ligands in the nanocomposite. Octylamine capped NCs
immobilized in the polymers showed high defect state emission and visible
quenching of band edge luminescence, indicating an effective interaction
between oleic acid and PMMA and PS polymeric chains (literal)
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