Design of luminescence-based temperature sensors

James N. Demas; Benjamin A. DeGraff Jr.

doi:10.1117/12.143497

30 April 1993 Design of luminescence-based temperature sensors

James N. Demas, Benjamin A. DeGraff Jr.

Proceedings Volume 1796, Chemical, Biochemical, and Environmental Fiber Sensors IV; (1993) https://doi.org/10.1117/12.143497
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

The temperature dependence of luminescence lifetimes can be used as a temperature monitor. We describe a simple, widely applicable model for the temperature dependence of emitting species. Equations are provided for the dependence of the lifetime versus temperature as well as a figure of merit for lifetime sensors. We then explore the ramifications of this model. For example, what is the appropriate combination of rate constants and energy gap for optimizing sensor performance at different temperatures? Based on these results we show that transition metal species or phosphorescent organic molecules offer the greatest opportunities for molecular design of sensors with very high sensitivities.

Citation Download Citation

James N. Demas and Benjamin A. DeGraff Jr. "Design of luminescence-based temperature sensors", Proc. SPIE 1796, Chemical, Biochemical, and Environmental Fiber Sensors IV, (30 April 1993); https://doi.org/10.1117/12.143497

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