2022
DOI: 10.1021/acsami.1c20937
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Upconverting NIR-to-NIR LuVO4:Nd3+/Yb3+ Nanophosphors for High-Sensitivity Optical Thermometry

Abstract: Accurate contactless thermometry is required in many rapidly developing modern applications such as biomedicine, micro-and nanoelectronics, and integrated optics. Ratiometric luminescence thermal sensing attracts a lot of attention due to its robustness toward systematic errors. Herein, a phonon-assisted upconversion in LuVO 4 :Nd 3+ /Yb 3+ nanophosphors was successfully applied for temperature measurements within the 323−873 K range via the luminescence intensity ratio technique. Dualactivating samples were o… Show more

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Cited by 39 publications
(14 citation statements)
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“…YVO 4 :Yb 3+ ,Tm 3+ , 33 Bi 2 MoO 6 : Yb 3+ ,Er 3+ ,Tm 3+ , 34 and LuVO 4 :Nd 3+ ,Yb 3+ . 35 However, upconversion luminescence has a much lower efficiency compared to the emission intensity upon host excitation. The efficiency of different excitation mechanisms, namely (1) through crystal host and (2) through direct absorption of rare earth ions, for synthesized nanothermometers was studied using excitation spectroscopy (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…YVO 4 :Yb 3+ ,Tm 3+ , 33 Bi 2 MoO 6 : Yb 3+ ,Er 3+ ,Tm 3+ , 34 and LuVO 4 :Nd 3+ ,Yb 3+ . 35 However, upconversion luminescence has a much lower efficiency compared to the emission intensity upon host excitation. The efficiency of different excitation mechanisms, namely (1) through crystal host and (2) through direct absorption of rare earth ions, for synthesized nanothermometers was studied using excitation spectroscopy (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…The Eu 3+ -doped LaVO 4 particles were synthesized in a salt melt according to the modified Pechini method that was described in detail earlier. 33,36 Metal oxides La 2 O 3 (99.995%), Eu 2 O 3 (99.999%), and V 2 O 5 (98.5%) were used as the raw materials. The La 2 O 3 and Eu 2 O 3 were transformed into a mixture of metal nitrates by dissolving them in nitric acid.…”
Section: Methodsmentioning
confidence: 99%
“…Different classes of thermometers generally exploit distinct photophysical properties of the emitting center, therefore, thermal sensors that use the combination of distinct thermometric parameters are reported quite rarely. [28][29][30] As each thermometric parameter has its own advantages and drawbacks, multimode nanothermometers in which the temperature affects, simultaneously, the different luminescence properties 19,31,32 or the different emitting centers, [33][34][35] can significantly broaden the working range and improve the reliability of the temperature measurements by choosing the appropriate temperature-sensitive parameter demonstrating the best performance at a certain temperature. 36 Recently, Carlos and co-workers reported experimental evidence of successful implementation of multiple linear regression to multimode thermal sensing leading to significant enhancement of the thermometric performance.…”
Section: Introductionmentioning
confidence: 99%
“…Hence, numerous thermometric techniques have sprung up as ceaselessly as mushrooms. [1][2][3][4][5][6][7][8][9][10][11] Among these, optical thermometry with its nonintrusive nature, high spatial resolution, fast response and relatively high sensitivity receives extensive attention, [12][13][14][15][16][17] and can circumvent the restriction of traditional contact thermometers, which are unable to be employed in fast moving or inaccessible substances such as in power stations, oil refineries, fire detection, and harsh situations.…”
Section: Introductionmentioning
confidence: 99%