NIR luminescence thermometers based on Yb–Nd coordination compounds for the 83–393 K temperature range

Abstract

Multimetallic neodymium-ytterbium-gadolinium compounds with 9-anthracenate and 9-acridinate anion were tested in order to create the first luminescence thermometer for elevated temperatures. High luminescence intensity and high signal resolution were reached...

Temperature-Dependent Circularly Polarized Luminescence of a Cholesteric Copolymer Doped with a Europium Complex

“…65% when the mixture film is heated. This is an extremely high value, which is several times higher than the highest sensitivity values for classic luminescent thermometry materials obtained to date (i.e., 31%/K at 4 K [ 22 ] and 12%/K at 125 K [ 23 ]), and an order of magnitude higher than that of thermometers at elevated temperature (i.e., 5.44%/K at 90 °C [ 24 ], 4%/K at 100 °C [ 25 ], 4.6%/K at 40 °C [ 26 ], 1.8%/K at 120 °C [ 27 ]). This value is also 15 times higher than the value obtained in our previous paper on temperature-dependent CPL [ 15 ].…”

Tuning of Ratiometric Optical Thermometry in the Family of Magnetic {Nd1–xIIIYbIIIx[Cu2I(CN)5]} Frameworks Showing the Large SHG Response

“…Among the reported examples of mixed Nd III and Yb III emission thermometers, this set of compounds demonstrates the highest sensitivity to the best of our knowledge (Table S7). , Further, to estimate the precision in determining the temperature, we evaluate the temperature uncertainty parameters, δ T = (δ Δ / Δ )/ S r , where δ Δ / Δ is the relative error in the determination of the thermometric parameter (Figures c,f,i, S12d, S13d, and Table S6). In a higher temperature range (100–300 K), δ T for all systems is substantially below 1 K, however, below 100 K, δ T values rise abruptly and approach 1 K. Among all five compounds, 3 seems to be the most optimal system with a large temperature operating range, high sensitivity, and proper coefficients of determination for the fitted values.…”

Metal-cyanido molecular modulators of the sensing range and performance in lanthanide-based luminescent thermometers

“…While, to some extent, the other combinations of Ln 3+ ions, such as Tb/Dy or Nd/Yb, embedded in molecule-based materials were also explored, the broad interest remained on the visible-light-emissive Eu III -Tb III pair. [33][34][35] The related Eu/Tb-MOFs and -CPs were studied with a large number of organic linkers or blocking ligands which provide quite efficient modulation of the T-sensing range, from cryogenic up to RT or even higher-T regions, together with the high performance of the resulting ratiometric luminescent thermometers. 33 However, a major challenge remains in the search for design principles for the efficient modulation of thermometric parameters of molecular lanthanide optical thermometers which is crucial for applications in devices working under specific temperature conditions.…”