Abstract
The Judd-Ofelt model, already verified for the luminescence intensity ratio (also called fluorescence intensity ratio, FIR) thermometry from the emission spectra, is modified and tested for the dual-excited single band luminescence thermometry. The adapted model has been tested on Lu2O3:Eu3+, with a 99.9% match of the temperature invariant parameter to the experimental value. The absolute sensitivity obtained experimentally and predicted by the model are almost indistinguishable. The model is proven to be adequate for inaugural phosphor quality evaluation, as it can reveal the approximate figures of merit of luminescence thermometry solely from the single emission spectrum.
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