Development of AlGaInSb/GaInSb multi-quantum well light emitting diodes for CO2 detection at 4.26 µm

Manuel Reza; Charalambos Klitis; Michael Sloan; Calum MacGregor; Marc Sorel

doi:10.1117/12.2582917

5 March 2021 Development of AlGaInSb/GaInSb multi-quantum-well light-emitting diodes for CO₂ detection at 4.26 μm

Manuel Reza, Charalambos Klitis, Michael Sloan, Calum MacGregor, Marc Sorel

Author Affiliations +

Proceedings Volume 11706, Light-Emitting Devices, Materials, and Applications XXV; 117060S (2021) https://doi.org/10.1117/12.2582917
Event: SPIE OPTO, 2021, Online Only

Abstract

In recent years there has been a rapidly increasing demand for CO2 sensors for applications in health monitoring, control of air quality and horticulture. Amongst the various approaches reported so far, the AlGaInSb quaternary alloy shows great promise for the development of compact Light Emitting Diodes (LEDs) as it offers bandgap Type-I alignments, which enable the design of effective multi-quantum well (MQW) active regions. In this paper we show a more than fourfold improvement in wall-plug eﬃciency by optimising both the strain in AlGaInSb MQW active regions and the fabrication process flow of LEDs emitting at 4.26 um.

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Citation Download Citation

Manuel Reza, Charalambos Klitis, Michael Sloan, Calum MacGregor, and Marc Sorel "Development of AlGaInSb/GaInSb multi-quantum-well light-emitting diodes for CO₂ detection at 4.26 μm", Proc. SPIE 11706, Light-Emitting Devices, Materials, and Applications XXV, 117060S (5 March 2021); https://doi.org/10.1117/12.2582917

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