Luminescence Intensity Ratio Thermometry with Er3+: Performance Overview

The figures of merit luminescence intensity ratio (LIR) thermometry for Er3+ in 40 different crystals and glasses have been calculated compared. For calculations, the relevant data has collected from literature while missing were derived available absorption emission spectra. parameters include Judd–Ofelt parameters, refractive indexes, Slater integrals, spin–orbit coupling reduced matrix elements (RMEs), energy differences between emitting levels used LIR, absolute, relative sensitivities. We found a slight variation RMEs hosts because variations values integrals we their average over hosts. calculations showed that perform better than Er3+-based thermometry, identified large both absolute sensitivity.