Friday, December 21, 2012

High efficient luminescence in type-II GaAsSb-capped InAs quantum dots upon annealing

(author unknown)



J. M. Ulloa, J. M. Llorens, and B. Alén et al.

The photoluminescence efficiency of GaAsSb-capped InAs/GaAs type II quantum dots (QDs) can be greatly enhanced by rapid thermal annealing while preserving long radiative lifetimes which are ∼20 times larger than in standard GaAs-capped InAs/GaAs QDs. Despite the reduced electron-hole wavefunction ... [Appl. Phys. Lett. 101, 253112 (2012)] published Fri Dec 21, 2012.



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