Minimally cooled InSb/InAlSb LED and photodiode devices applied to nitrogen dioxide detection at ppm levels

J. G. Crowder, T. Ashley, C. T. Elliott, G. J. Pryce, A. D. Johnson

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The application of room temperature indium LED and photodiode devices, to the detection of nitrogen dioxide, using infrared absorption, is reported. With the photodiodes minimally cooled to -20 °C for improved sensitivity, a resolution of 3 ppm for nitrogen dioxide detection is achieved, using a path length of 4 m. The potential applications of the photodiodes include air pollution monitoring and measuring emissions from power flues and vehicle exhausts.

Original languageEnglish
Pages (from-to)1867-1869
Number of pages3
JournalElectronics Letters
Volume36
Issue number22
DOIs
Publication statusPublished - 26 Oct 2000

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