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Room Temperature led's for the MID-Infrared Based on in(AS,SB) Strained Layer Superlattices
Published online by Cambridge University Press: 10 February 2011
Abstract
Arsenic-rich InAs/InAs1−x Sbx strained-layer superlattices (SLS's) are studied in time-resolved optical, and CW magneto-optical spectroscopies. A pronounced type-II offset, with electrons confined to the alloy layers, is found. High radiative efficiencies at wavelengths well into the mid-IR, and the suppression of Auger recombination yield LED's operating at 3–10 μm. Present room temperature powers are ∼30 μW, probably limited by inadequate carrier confinement.
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- Copyright © Materials Research Society 1997