Optical temperature sensing behavior of Er3+/Yb3+/Tm

Guangrun Chen

¹

,

Ruoshan Lei

²

,

Feifei Huang

³

et al.

Negative thermal expansion triggered anomalous thermal upconversion luminescence behaviors in Er3+/Yb3+-codoped Y2Mo3O12 microparticles for highly sensitive thermometry

“…12 Also, utilizing the temperature-dependent emissions of Er 3+ and Tm 3+ ions, Xu et al, reported that the maximum S r value of Y 2 O 3 :Er 3+ /Tm 3+ /Yb 3+ nanoparticles was 1.12% K -1 . 13 Despite of these, the implementation of optical thermometry by using UC emission is still hindered by some inherent limitations of upconverting materials, such as weak and impressionable emissions. For example, the thermal quenching (i.e., loss of the emission at elevated temperature) is generally existed in the upconverting materials which greatly restricts the feasibility of UC emission.…”

Highly sensitive optical thermometer of Sm3+, Mn4+ activated LaGaO3 phosphor for the regulated thermal behavior

“…Activators as Er 3+ , Tm 3+ , and Ho 3+ ions have been demonstrated with a temperature-dependent up-conversion performance, realizing temperature detection in the range of 293-573 K. 8 Researches on Er 3+ ions for the FIR from 2 H 11/2 / 4 S 3/2 thermally and 4 F 9/2 / 4 S 3/2 non-thermally coupled levels have been most frequently investigated in BaGd 2 O 4 , 9 SiAlON, 10 2CaO Al 2 O 3 11 host matrix. Nevertheless, for growing detection requirement in terms of reliability and stability, the employment of non-thermally coupled energy levels is being considered as an effective complement to a better sensitivity of FIR.…”

Fluorescence Intensity Ratio‐based temperature sensor with single Nd3 + :Y2O3 nanoparticles: Experiment and theoretical modeling

“…Such high sensitivity implies a value for very close to or even higher than , as is also the case for Yb 3 + /Er 3 + codoped yttria NPs. [ 34–36 ] Equation 21 also admits those solutions for certain values of and , so one possible explanation for higher sensitivities are different contributions for the lower energy phonons in the density of states. Further experiments with Yb 3 + /Er 3 + codoped yttria NPs can be performed in order to investigate such possibility.…”