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Article Dans Une Revue physica status solidi (b) Année : 2006

Structural and optical properties of InSb quantum dots for mid-IR applications

Résumé

We investigate the MBE growth and properties of Sb-based nanostructures, very promising candidates as active material for mid infrared light sources operating between 3 and 5 m. We show that the key feature for the fabrication of highly dense and optically efficient InSb quantum dots is the control of In-adatoms mobility. We obtain defect-free nanostructures with a density as high as 8 × 1010 dots/cm2 together with improved performance in terms of optical emission. Photoluminescence and electroluminescence emissions, peaked at around 360 meV, have been measured which exhibit a linewidth of 47 meV at 90 K. The emission is detected up to room temperature, with an intensity quenching factor as low as 4 from 90 K to 300 K, demonstrating good thermal stability of the material

Dates et versions

hal-00328071 , version 1 (09-10-2008)

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V. Tasco, N. Deguffroy, A. N. Baranov, E. Tournié, B. Satpati, et al.. Structural and optical properties of InSb quantum dots for mid-IR applications. physica status solidi (b), 2006, 243 (15), pp.3959-3962. ⟨10.1002/pssb.200671512⟩. ⟨hal-00328071⟩
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