Journal article
Two-color thermosensors based on [Y1-xDyx(acetylacetonate)(3) (1,10-phenanthroline)] molecular crystals
Applied physics. B, Lasers and optics, Vol.123(2), pp.1-15
02/01/2017
Abstract
We develop a two-color thermometry (TCT) phosphor based on [Y1-xDyx(acetylacetonate)(3) (1,10-phenanthroline)] ([Y1-xDyx(acac)(3)(phen)]) molecular crystals for use in heterogeneous materials. We characterize the optical properties of [Y1-xDyx(acac)(3)(phen)] crystals at different temperatures and Dy concentrations, and find that the emission is strongly quenched by increasing temperature and concentration. We also observe a broad background emission (due to the ligands) and find that [Y1-xDyx(acac)(3)(phen)] photodegrades under 355 nm illumination with the photodegradation resulting in decreased luminescence intensity. However, while decreasing the overall emission intensity, photodegradation is not found to influence the integrated intensity ratio of the I-4(15/2) -> H-6(15/2) and F-4(9/2) -> H-6(15/2) transitions. This ratio allows us to compute the temperature of the complex. Based on the temperature dependence of these ratios; we calculate that [Y1-xDyx(acac)(3)(phen)] has a maximum sensitivity of 1.5% K-1 and our TCT system has a minimum temperature resolution of 1.8 K. Finally, we demonstrate the use of [Y1-xDyx(acac)(3)(phen)] as a TCT phosphor by determining a dynamic temperature profile using the emission from [Y1-xDyx(acac)(3)(phen)].
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Details
- Title
- Two-color thermosensors based on [Y1-xDyx(acetylacetonate)(3) (1,10-phenanthroline)] molecular crystals
- Creators
- Benjamin R. Anderson - Washington State Univ, Appl Sci Lab, Inst Shock Phys, Spokane, WA 99210 USARay Gunawidjaja - Washington State UniversityHergen Eilers - Washington State University
- Publication Details
- Applied physics. B, Lasers and optics, Vol.123(2), pp.1-15
- Academic Unit
- Institute for Shock Physics
- Publisher
- Springer Nature
- Number of pages
- 15
- Grant note
- FA9550-15-1-0309 / Air Force Office of Scientific Research; United States Department of Defense; Air Force Office of Scientific Research (AFOSR)
- Identifiers
- 99900876938401842
- Language
- English
- Resource Type
- Journal article