Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 215, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201700449
Keywords
AlInSb; gas sensors; mid-infrared light emitting diodes
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In this paper, performance of mid-infrared light emitting diodes (LEDs) with an InSb buffer layer and AlInSb active/barrier layers, emitting at room temperature is reported. This film structure makes an ideal base material in view of carrier confinement and crystalline quality. In order to achieve a high efficiency for light extraction, backside emission architecture is adopted together with a rough emitting surface and TiO2 anti-reflection coating. The resulting AlInSb LED shows 75% higher power conversion efficiency than the reference, which has the highest efficiency in the market to date.
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