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Predicting the thermometric performance of diverse materials will facilitate the selection and design of nanothermometers to suit complex environments and specific signal outputs while saving much time and expense. Herein we explore and unveil the thermal-coupled thermometric performance of Er/Yb codoped in a set of host lattices via the chemical bond theory of complex crystals. The unknown and Δ values of the thermometry are accurately estimated by the chemical bond parameters, further deepening our cognition of the correlation between the luminescence properties of Er ions and the microscopic crystal structure. This allows us to precisely forecast the thermal-coupled thermometric performance of Er for varying host lattices in advance.
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http://dx.doi.org/10.1021/acs.jpclett.9b02343 | DOI Listing |
RSC Adv
August 2025
GdS Optronlab, Department of Condensed Matter Physics, University of Valladolid LUCIA Building, Paseo de Belen 19 Valladolid 47011 Spain.
The integration of down-conversion (DC) and up-conversion (UC) photoluminescence mechanisms has attracted significant attention for applications in optical thermometry and solid-state lighting. Combining both emission processes within a single material enables dual-mode temperature sensing, offering enhanced flexibility and precision. In this study, we report a pioneering investigation of the dual-mode thermometric performance of LiCaLa(MoO) phosphors co-doped with Er (0.
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2025
Key Laboratory of Photosensitive Material and Device of Liaoning Province, Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission & School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, P. R. China.
The population of thermally coupled energy levels (TCLs) of lanthanide ions (Ln) has a significant impact on their photoluminescence (PL) properties, which are influenced by multiple physical mechanisms, including temperature, crystal field environment, ion concentration, and external excitation conditions, among others. The switchable multicolor emissions of Dy and Er codoped CaWO (CaWO:Dy/Er) phosphors were obtained by varying the doping concentration and excitation wavelength. The excitation wavelength-dependent PL intensities from TCL transitions of Dy and Er, combined with the corresponding fluorescence dynamics of TCLs, confirmed the significant energy transfer (ET) from Dy to Er.
View Article and Find Full Text PDFSmall
August 2025
XStruct, Department of Chemistry, Ghent University, Ghent, 9000, Belgium.
Temperature measurements in biological systems deliver important information about the occurrence and location of diseases such as cancer. Also, certain therapies rely on local heating of tumor tissue, and therefore, feedback on the heating of nearby healthy tissue is valuable. However, classical thermometers are not suitable for precise temperature detection in living systems.
View Article and Find Full Text PDFRSC Adv
June 2025
Universitat Rovira i Virgili (URV), Física i Cristal·lografia de Materials (FiCMA) Marcel·li Domingo 1 Tarragona 43007 Spain
Dy-doped CaLa(SiO)(PO)O (CLSPO) phosphors were synthesized a solid-state reaction method and characterized for their structural, optical, and thermometric properties. X-ray diffraction (XRD) and Rietveld refinement confirmed a hexagonal apatite-type structure (6/) with refined lattice parameters of = = 9.604(3) Å, = 7.
View Article and Find Full Text PDFJ Phys Chem Lett
June 2025
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland.
Undoubtedly, one of the most significant advantages of luminescence thermometry is its ability to be used not only for spot temperature measurements but also for imaging temperature changes. Among the commonly proposed approaches, luminescence thermometry based on luminescence kinetics holds particular promise. However, most thermometric studies rely on the analysis of luminescence decay profiles, a method that significantly hinders, if not entirely precludes, real-time thermal imaging.
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