http://www.cnr.it/ontology/cnr/individuo/prodotto/ID59132

Photoluminescence of hydrophilic silicon nanocrystals in aqueous solutions (Articolo in rivista)

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Photoluminescence of hydrophilic silicon nanocrystals in aqueous solutions (Articolo in rivista) (literal)

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Prtljaga N., E. D'Amato, A. Pitanti, R. Guider, E. Froner, S. Larcheri, M. Scarpa and L.. Pavesi, (2011)
Photoluminescence of hydrophilic silicon nanocrystals in aqueous solutions
in Nanotechnology (Bristol. Print)
(literal)

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Prtljaga N., E. D'Amato, A. Pitanti, R. Guider, E. Froner, S. Larcheri, M. Scarpa and L.. Pavesi, (literal)

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1. Univ Trent, Dept Phys, I-38123 Trento, Italy (N. Prtljaga, E. D'Amato, A. Pitanti, R. Guider, E. Froner, S. Larcheri, Scarpa, M. Scarpa, L. Pavesi) 2. CNR, Ist Nanosci, Scuola Normale Super, NEST, I-56127 Pisa, Italy (A. Pitanti) (literal)

Titolo

Photoluminescence of hydrophilic silicon nanocrystals in aqueous solutions (literal)

Abstract

Stable aqueous solutions of undecylenic-acid-grafted silicon nanocrystals (Si-nc) were prepared. The time evolution of the photoluminescence properties of these hydrophilic silicon nanocrystals has been followed on different timescales (hours and days). On a short timescale (hours), Si-nc tend to agglomerate while the PL lineshape and intensity are stable. Agglomeration can be reduced by using suitable surfactants. On a long timescale (days), oxidation of Si-nc occurs even in the presence of surfactants. These two observations render Si-nc very useful as a labeling agent for biosensin (literal)

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