Coumarin 7 functionalized europium-based metal–organic-framework luminescent composites for dual-mode optical thermometry

Abstract

To develop highly reliable noncontact optical thermometer probe with excellent sensitivity and multi-mode temperature sensing behaviours is always a great challenge. Here, dual-emitting luminescent composites fabricated by europium-based metal organic...

Going Above and Beyond: A Tenfold Gain in the Performance of Luminescence Thermometers Joining Multiparametric Sensing and Multiple Regression

“…Recently, the reliability of luminescent nanothermometers has been improved using the combination of distinct thermometric parameters. [39][40][41] This strategy is based on the use of socalled multiparametric nanothermometers in which temperature impacts, simultaneously, different luminescence properties [42][43][44][45] or different emitting centers. [46][47][48][49] The use of different thermal readouts improves the reliability of temperature measurements by providing self-calibrated nanothermometers, increasing the precision of temperature measurement.…”

“…[46][47][48][49] The use of different thermal readouts improves the reliability of temperature measurements by providing self-calibrated nanothermometers, increasing the precision of temperature measurement. [33,40,50] Multiparametric nanothermometers are gaining special attention in biomedicine: Ag 2 S nanocrystals have demonstrated their potential for reliable thermal sensing in small animal models, [44,51] whereas the multifaced changes in the band-shape of green fluorescent protein (GFP) can be used for temperature sensing and imaging in cell biology and physiology. [15,28,[52][53][54][55] Despite it helps to improve the reliability, the so-called multiparameter sensing is still unable to improve significantly the relative thermal sensitivity of the nanothermometers and the reported values are far below the most sensitive luminescent thermometers reported so far.…”

Enhanced Fluorescence of La3+, Gd3+ doped EuW10 for Temperature sensing performance

“…At present, most of the reported effective ranges of measuring temperature are cryogenic (< 100 K), medium (100 K-300 K) and biological temperature (298 K-323 K). [16,17,[27][28][29][30][31][32][33] However, there are few reports about supporting the measurement at high temperature (373 K/100°C). Table S1 summarizes several representative lanthanide thermometers whose temperature sensing range includes 501 00°C in recent years.…”

Temperature sensors based on europium polyoxometalate and mesoporous terbium metal–organic framework

“…16 In addition, a coumarin derivative C460 has been encapsulated in a TbMOF, exhibiting a high thermal sensitivity of 4.48% at 300 K, 17 while very recently Coumarin 7 was immobilized in a trimesate EuMOF with moderate thermometric properties (Sr = 0.5% at 363 K). 18 Nevertheless, to the best of our knowledge, the incorporation of lanthanide complexes into LnMOFs for thermometry remains unexplored. Polyoxometalates (POMs) incorporating lanthanides 19,20 appear as ideal candidates, as they combine excellent luminescence properties (narrow emission bands, large Stokes shift and long lifetime), high stability and rigidity.…”