Title :
Detection of nitrogen dioxide using a room temperature operation mid-infrared InSb light emitting diode
Author :
Wang, C.H. ; Crowder, J.G. ; Ashley, T. ; Dutton, D.T. ; Johnson, A.D. ; Pryce, G.J. ; Smith, Sanjukta
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh
fDate :
2/5/1998 12:00:00 AM
Abstract :
The authors report trace gas detection of nitrogen dioxide (NO2) using a room temperature operation InSb LED and an infrared absorption technique. A gas growth characteristic has been obtained for an 11 cm long gas cell containing a light pipe for light collection and transmission. The results show that detection of NO2 at a concentration level of 10 ppm can be achieved in this sensor design
Keywords :
III-V semiconductors; gas sensors; indium compounds; light emitting diodes; nitrogen compounds; optical sensors; InSb; InSb light emitting diode; NO2; NO2 detection; gas growth characteristic; infrared absorption technique; light pipe; mid-infrared LED; room temperature operation; sensor design; trace gas detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980247
