Exciton recombination dynamics inInAs∕InPself-assembled quantum wires

6533b857fe1ef96bd12b3992

RESEARCH PRODUCT

Exciton recombination dynamics inInAs∕InPself-assembled quantum wires

David Fuster Yolanda González Luisa González Juan P. Martínez-pastor

subject

Quenching Materials science Photoluminescence Atmospheric escape Condensed matter physics Condensed Matter::Other business.industry Exciton Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Semiconductor Continuous wave Spontaneous emission business

description

In this work we investigate the exciton recombination dynamics in InAs/ InP semiconductor self-assembled quantum wires, by means of continuous wave and time resolved photoluminescence. The continuous wave photoluminescence results seem to indicate that the temperature quenching of the emission band seems to be more probably due to unipolar thermal escape of electrons towards the InP barrier. On the other hand, the analysis of time resolved photoluminescence reveals that the temperature dependence of the radiative and nonradiative recombination times is mainly determined by the dynamics of excitons localized by disorder shigh energy tail of the PL bandd and strongly localized slow energy tail of the PL bandd in local size fluctuations of the quantum wires.

year	journal	country	edition	language
2005-05-31	Physical Review B

https://doi.org/10.1103/physrevb.71.205329

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