Unipolar heterostructures with effective interband radiative recombination under current pumping

Design principles of isotype heterostructures for efficient interband recombination under electric current pumping are developed. Transport and radiative recombination features are studied for the InGaAs/AlGaAs/GaAs isotype heterostructure with the energy balance model. The radiative recombination c...

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Bibliographic Details
Published in2022 International Conference Laser Optics (ICLO) p. 1
Main Authors Slipchenko, Sergey O., Soboleva, Olga S., Pikhtin, Nikita A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 20.06.2022
Subjects
Charge carrier density
energy balance model
high power laser diodes
impact ionization
interband recombination
isotype heterostructures
Laser excitation
Laser modes
Optics
Power lasers
Quantum well lasers
Radiative recombination
unipolar laser diodes
unipolar light emitting devices
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Summary:Design principles of isotype heterostructures for efficient interband recombination under electric current pumping are developed. Transport and radiative recombination features are studied for the InGaAs/AlGaAs/GaAs isotype heterostructure with the energy balance model. The radiative recombination current 43 A (with a pumping current 200 A) and the maximum internal quantum efficiency is 28% (at 55-65 A) were demonstrated in structures with 3 quantum wells. At currents above 15 A, the carrier density accumulated in the active region reaches a value of 3.10 18 cm -3 , which shows the possibility of unipolar laser diodes developing.
ISBN:1665466634
9781665466639
ISSN:2642-5580
DOI:10.1109/ICLO54117.2022.9839886