P A S Jorge et al 2006 Meas. Sci. Technol. 17 1032 doi:10.1088/0957-0233/17/5/S16
P A S Jorge1,2,3, M Mayeh1, R Benrashid1, P Caldas2,4, J L Santos2,3 and F Farahi1
Show affiliationsThe use of semiconductor nano-particles as temperature probes in luminescence chemical sensing applications is addressed. Temperature changes the intensity, the peak wavelength and the spectral width of the quantum dots luminescent emission in a linear and reversible way. Results are presented that show the feasibility of implementing a self-referenced intensity-based sensor to perform temperature measurements independent of the optical power level in the sensing system. A resolution of 0.3 °C was achieved. In addition, it is demonstrated that self-referenced temperature measurements at multiple points could be performed using reflection or transmission based optical fibre configurations.
87.80.-y Biophysical techniques (research methods)
07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
Instrumentation and measurement
Issue 5 (May 2006)
Received 18 July 2005, in final form 26 September 2005
Published 7 April 2006
P A S Jorge et al 2006 Meas. Sci. Technol. 17 1032
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