InAsSb/lnAsSbP light emitting diodes for the detection of CO and CO2 at room temperature

Gao, H H and Krier, A and Sherstnev, V and Yakovlev, Y (1999) InAsSb/lnAsSbP light emitting diodes for the detection of CO and CO2 at room temperature. Journal of Physics D: Applied Physics, 32 (15). pp. 1768-1772. ISSN 0022-3727

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Abstract

This report describes the epitaxial growth and fabrication of room-temperature InAs0.89Sb0.11/InAs0.48Sb0.22P0.30 semiconductor light emitting diodes operating in the mid-infrared wavelength region near 4.5 mu m. The InAs0.89Sb0.11 ternary material used in the light emitting diode active region has a large lattice mismatch with respect to the InAs substrate layer and in order to accommodate this it was necessary to grow a buffer layer with an intermediate composition (InAs0.94Sb0.06). The devices exhibit infrared emission at 4.5 mu m and could be effectively used as the basis of an optical sensor for the environmental monitoring of carbon monoxide at 4.6 mu m and carbon dioxide at 4.2 mu m in various applications.

Item Type: Journal Article
Journal or Publication Title: Journal of Physics D: Applied Physics
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 56604
Deposited By: ep_importer_pure
Deposited On: 10 Aug 2012 15:51
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:02
URI: https://eprints.lancs.ac.uk/id/eprint/56604

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