Silica thin films with embedded SnO2 nanoparticles have been grown on transparent substrates by the sol–gel method. Tin dioxide crystals with cassiterite structure are semiconductors with a wide band gap of ~3.6 eV. Optical absorption spectroscopy in the near ultraviolet–visible range has been exploited to probe nanostructuring features of such nanocrystals. The results show that the sintering conditions modify crystallite mean size and enable the occurrence of quantum confinement effects. The outcome is in accordance with transmission electron microscopy data conducted on analogous bulk samples.

Lorenzi, R., Lauria, A., Mochenova, N., Chiodini, N., & Paleari, A. (2011). Study of the absorption edge of SnO2 nanoparticles embedded in silica films. JOURNAL OF NON-CRYSTALLINE SOLIDS, 357(8-9), 1888-1891 [10.1016/j.jnoncrysol.2010.12.045].

Study of the absorption edge of SnO2 nanoparticles embedded in silica films

LORENZI, ROBERTO;LAURIA, ALESSANDRO;CHIODINI, NORBERTO;PALEARI, ALBERTO MARIA FELICE
2011

Abstract

Silica thin films with embedded SnO2 nanoparticles have been grown on transparent substrates by the sol–gel method. Tin dioxide crystals with cassiterite structure are semiconductors with a wide band gap of ~3.6 eV. Optical absorption spectroscopy in the near ultraviolet–visible range has been exploited to probe nanostructuring features of such nanocrystals. The results show that the sintering conditions modify crystallite mean size and enable the occurrence of quantum confinement effects. The outcome is in accordance with transmission electron microscopy data conducted on analogous bulk samples.
Articolo in rivista - Articolo scientifico
Absorption edge; Wide band gap semiconductor; Nanostructures; Silica film; Sol–gel
English
1888
1891
4
Lorenzi, R., Lauria, A., Mochenova, N., Chiodini, N., & Paleari, A. (2011). Study of the absorption edge of SnO2 nanoparticles embedded in silica films. JOURNAL OF NON-CRYSTALLINE SOLIDS, 357(8-9), 1888-1891 [10.1016/j.jnoncrysol.2010.12.045].
Lorenzi, R; Lauria, A; Mochenova, N; Chiodini, N; Paleari, A
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/18793
Citazioni
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 7
Social impact