Room temperature continuous wave operation of electrically-injected Sb-based RC-LED emitting near 2.3μm

This paper is dedicated to the fabrication and the characterization of Sb-based electrically-injected RC-LED devices emitting in the mid-infrared wavelength range. These structures operate in Continuous Wave operation at Room Temperature thanks to to a Multi Quantum Well GaInAsSb/AlGaAsSb active region sandwiched between two AlAsSb/GaSb n- and p-doped Bragg mirrors. RC-LED devices with a diameter of 160 μm were processed and exhibited bright electroluminescence peaked near 2.3 μm at Room Temperature with an external quantum efficiency of 0.16% at 34 A/cm2. A wavelength tunability of 0.5 nm/mA was measured. The microcavity enhanced electroluminescence remains narrow over a 50 K temperature range.