Krier, A. and Sherstnev, V. V. (2001) LEDs for formaldehyde detection at 3.6 mu m. . Journal of Physics D-Applied Physics, 34 (3). pp. 428-432. ISSN 0022-3727Full text not available from this repository.
A mid-infrared light-emitting diode (LED) operating at 3.6 mum with a pulsed output power as high as 2 mW at room temperature is reported. The device is based on a double heterostructure of InAs0.42Sb0.18P0.40/ GaxIn1-xAs1-ySby/InAs0.42Sb0.18P0.40 grown by liquid phase epitaxy. The active region composition was adjusted using different Ga content (x = 0.05-0.17) over which range the band gap is approximately constant. The electrical and optical operating characteristics are reported. The emission spectra measured with and without 100% formaldehyde have also been measured using a short-path optical cell to demonstrate the potential of these LEDs for use in solid state formaldehyde gas sensors.
|Journal or Publication Title:||Journal of Physics D-Applied Physics|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Dr Susan E. Krier|
|Deposited On:||18 Mar 2008 13:17|
|Last Modified:||26 Jul 2012 18:11|
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