| Autor: |
Haigh, M. K., Nash, G. R., Smith, S. J., Buckle, L., Emeny, M. T., Ashley, T. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 6/4/2007, Vol. 90 Issue 23, p231116, 3p, 1 Diagram, 1 Chart, 2 Graphs |
| Abstrakt: |
The properties of AlxIn1-xSb light-emitting diodes (LEDs) have been investigated as a function of aluminum concentrations between 0% and 8.8%. By varying the aluminum concentration it is possible to tailor the peak emission wavelength to match the characteristic absorption of CO2, CO, CH4, NO, and NO2, making these diodes suitable for use in infrared gas sensing applications. The total emitted power and internal quantum efficiency were found to have maxima of 27 mW/cm2 and 4.2%, respectively, at a composition of 2.5%, where the peak emission was found to be 5.3 μm, making LEDs of this composition particularly suited to the detection of NO. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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