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Article Dans Une Revue Physica E: Low-dimensional Systems and Nanostructures Année : 2009

Quantum confinement regime in silicon nanocrystals

Résumé

We study the origin of photoluminescence (PL) in Si nanocrystals embedded in a silicon-rich SiO2 matrix. PL properties as a function of time and temperature were investigated for nanocrystal diameters (d) ranging from about 1.5 to 4 nm. All our observations (logarithmic evolution of the timescale as a function of energy, gap associated temperature shift of the PL energy, and logarithmic evolution of size as a function of confinement energy) indicates that PL occurring in small nanocrystals (d<4 nm) originates from quantum confinement.

Dates et versions

hal-03687486 , version 1 (03-06-2022)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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J. Derr, Kerry Dunn, Daria Riabinina, François Martin, Mohamed Chaker, et al.. Quantum confinement regime in silicon nanocrystals. Physica E: Low-dimensional Systems and Nanostructures, 2009, 41 (4), pp.668-670. ⟨10.1016/j.physe.2008.11.008⟩. ⟨hal-03687486⟩
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