F. V. de Sales

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We have investigated the quantum dot (QD) carrier capture mechanism using continuous wave photoluminescence as a function of the optical excitation intensity using a sample with a QD density gradient across its surface ranging from 0 to 1.8 £ 10 11 cm 22. Modelling of the carrier kinetics has been described by a set of three coupled rate equations(More)
We report the results of time-integrated and time-resolved photoluminescence spectroscopy on red-emitting self-organized InAs/Al 0.6 Ga 0.4 As quantum dots with indirect barriers. Spatially resolved PL measurements confirm that carriers excited in the Al 0.6 Ga 0.4 As barriers are consistent with a carrier hopping process between dots, a result also(More)
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