Eu3+-doped ratiometric optical thermometers: Experiment and Judd-Ofelt modelling

Multisignal optical temperature‐sensing properties of Eu3+‐doped NaYF4 nanoparticles

“…Although Eu 3+ is a kind of frequently‐used RE 3+ ions for its strong red emissions of 5 D 0 → 7 F J , there are only a few reports of optical temperature sensing using the FIR of Eu 3+ , [ 16–21 ] because the other emissions except 5 D 0 → 7 F J (typically 5 D 1 → 7 F J’ ) are usually too weak to be detected in many kinds of hosts. [ 22–24 ] Furthermore, these few reports focused on temperature sensing in high temperature range are based on thermal excitation between thermal coupled levels (TCLs) of 5 D 0 and 5 D 1 .…”

“…[ 22–24 ] Furthermore, these few reports focused on temperature sensing in high temperature range are based on thermal excitation between thermal coupled levels (TCLs) of 5 D 0 and 5 D 1 . [ 16–18 ]…”

“…[12][13][14][15] Although Eu 3+ is a kind of frequently-used RE 3+ ions for its strong red emissions of 5 D 0 ! 7 F J , there are only a few reports of optical temperature sensing using the FIR of Eu 3+ , [16][17][18][19][20][21] because the other emissions except 5 D 0 ! 7 F J (typically 5 D 1 !…”

“…[22][23][24] Furthermore, these few reports focused on temperature sensing in high temperature range are based on thermal excitation between thermal coupled levels (TCLs) of 5 D 0 and 5 D 1 . [16][17][18] In this work, the multisignal (different emissions/colours) temperature sensing of Eu 3+ -doped NaYF 4 nanoparticles (NPs) based on FIR between 5 D 0 ! 7 F J and 5 D 1 !…”

Dual-ion substituted (MeY)3(AlSi)5O12:Eu garnet phosphors: combinatorial screening, reductive annealing, and luminescence property

“…The promising photoluminescence spectrum (PL) and excitation spectrum (PLE) distribution greatly expand its potential applications. [18][19][20][21] Further, it has become a new research direction to obtain emissions from mixed-valence Eu ions in a single substrate. So far, many efforts have been made to realize the doping of divalent Eu ions in the YAG system, such as by means of charge compensation, crystal engineering and other specic approaches.…”