IOP Publishing, Journal of Physics: Conference Series, (643), p. 012043, 2015
DOI: 10.1088/1742-6596/643/1/012043
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Sulphide passivation was used for reducing the surface recombination velocity of microdisk mesas based on (AlGaIn)As/GaAs heterostructures with active region formed either by ten GaAs/AlAs quantum wells or by 1 layer of InAs/In0.15Ga0.85As quantum dots. It was demonstrated that the sulfide passivation results in substantial increase of photoluminescence intensity in all types of the mesa-structures studied.