Controlling optical temperature detection of Ca3Al2O6: Yb3+,Er3+ phosphors through doping

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

“…in comparison with these of traditional thermometers. 6,7 Currently, fluorescence intensity rate (FIR), which makes use of the temperature-dependent emission Intensities of thermally coupled levels (TCLs) of rare-earth ions, has been greatly researched for optical thermometry. 8,9 In terms of the TCLs, their energy band gap (ΔE) should be within a certain range of 200-2000 cm -1 , which is not benefit for achieving high relative sensitivity (i.e., ).…”

Luminescent Materials Based on Aluminates: A Review

“…Transitions from the 1 D 2 level result in the emission of UC at 367 and 457 nm. UC has also been studied in alkaline‐earth aluminates like Ca 3 Al 2 O 6 , [ 390 ] containing Yb–Er pair and SrAl 4 O 7 doped with Yb–Tm pair. [ 391 ]…”

Upconversion luminescence and temperature sensing properties of Yb2(MoO4)3:Ln3+ (Ln = Ho, Tm, Er) phosphors based on energy transfer

“…11 In recent years, non-contact fluorescence temperature measurement technology has played an increasingly important role in scientific research, medicine, industrial production and people's daily life, and has become a research hotspot in the field of temperature sensing. 12,13 In this approach, it is possible to measure the temperature of an object without touching the surface of the object, so it can be applied to environments with harsh conditions, such as strongly corrosive environments, environments with strong electromagnetic fields, around volcanic rocks, etc. 14,15 It has the advantages of good stability, high resolution and fast response.…”