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Proceedings Paper

Design of luminescence-based temperature sensors
Author(s): James N. Demas; Benjamin A. DeGraff Jr.
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Paper 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.

Paper Details

Date Published: 30 April 1993
PDF: 5 pages
Proc. SPIE 1796, Chemical, Biochemical, and Environmental Fiber Sensors IV, (30 April 1993); doi: 10.1117/12.143497
Show Author Affiliations
James N. Demas, Univ. of Virginia (United States)
Benjamin A. DeGraff Jr., James Madison Univ. (United States)

Published in SPIE Proceedings Vol. 1796:
Chemical, Biochemical, and Environmental Fiber Sensors IV
Robert A. Lieberman, Editor(s)

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