29 September 1995 Comparison between stationary intensity and lifetime luminescence measurements with fiber optic oxygen sensors containing [Ru(4.7Ph2phen)3]2+ in silicone polymer
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Proceedings Volume 2508, Chemical, Biochemical, and Environmental Fiber Sensors VII; (1995) https://doi.org/10.1117/12.221743
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany
Abstract
A behavior often registered in intensity based measurements of such sensors are the downcurved STERN-VOLMER-plots, which result in problems of reproducibility and calibration, especially between different sensors of the same type. Another effect is the disagreement between lifetime- and intensity-based STERN-VOLMER-plots, which should be the same in case of dynamic quenching. For a fiber optic system with the [Ru(4.7Ph2phen)3]2+-complex in polydimethylsiloxan on the fiber tip mono- and multi-exponential decay models have been examined. There are no significant differences between monoexponential fitted lifetimes and weighted mean lifetimes from multi-exponential models. STERN-VOLMER-plots from lifetime measurements are in good agreement with intensity based measurements on fresh prepared samples.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Birgit Hannemann, Adriana Tamachkiarowa, Christian V. Radehaus, "Comparison between stationary intensity and lifetime luminescence measurements with fiber optic oxygen sensors containing [Ru(4.7Ph2phen)3]2+ in silicone polymer", Proc. SPIE 2508, Chemical, Biochemical, and Environmental Fiber Sensors VII, (29 September 1995); doi: 10.1117/12.221743; https://doi.org/10.1117/12.221743
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