Библиографическое описание:Optical Thermometer Based on Efficient Near-Infrared Dual-Emission of Cr3+ and Ni2+ in Magnetoplumbite Structure : научное издание / Q. Q. Zhang [et al.]. - Текст : непосредственный // Advanced Optical Materials. - 2024. - Т. 12, № 1. - ISSN 2195-1071, DOI 10.1002/adom.202301429.
Аннотация:<jats:title>Abstract</jats:title><jats:p>Recently, an optical thermometer based on the dual-emitting fluorescent intensity ratio (FIR) in the visible light (VIS) region has achieved great development. However, there is very little progress in thermometers from NIR light. In this work, a novel optical thermometer based on highly efficient NIR dual-emission of Cr<jats:sup>3+</jats:sup> and Ni<jats:sup>2+</jats:sup> in LaZnGa<jats:sub>11</jats:sub>O<jats:sub>19</jats:sub> (LZG) with a magnetoplumbite structure is designed. Utilizing energy transfer from Cr<jats:sup>3+</jats:sup> to Ni<jats:sup>2+</jats:sup>, the dual-emission shows a wide coverage in the 650–1600 nm region, covering the NIR I and II windows, respectively. The as-reported LZG:0.3Cr<jats:sup>3+</jats:sup> and LZG:0.3Cr<jats:sup>3+</jats:sup>,0.01Ni<jats:sup>2+</jats:sup> phosphors can reach internal/external quantum efficiency (IQE/EQE) of 94%/64% and 77%/53%, respectively. The electroluminescence property and potential applications in spectroscopic analysis, night-vision, and bioimaging of fabricated NIR-LED with LZG:0.3Cr<jats:sup>3+</jats:sup>,0.01Ni<jats:sup>2+</jats:sup> have also been investigated. In addition, the designed ratiometric optical thermometer responds to wide temperature ranges (100-175 K, 200–475 K) and shows a maximum relative sensitivity value (<jats:italic>S</jats:italic><jats:sub>r</jats:sub>) of 2.4% K<jats:sup>−1</jats:sup> at 475 K. The optical performance of absorption in the red region and emission in the NIR region enables the LZG:0.3Cr<jats:sup>3+</jats:sup>,0.01Ni<jats:sup>2+</jats:sup> to become a candidate for NIR optical thermometers in biotechnological applications.</jats:p>
Держатель оригинала документа:College of Pharmacy Jiamusi University Jiamusi Heilongjiang 154007 P. R. China, Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 China, International Research Center of Spectroscopy and Quantum Chemistry — IRC SQC Siberian Federal University Krasnoyarsk 660041 Russia, School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 China, State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China, Zhejiang Institute China University of Geosciences Hangzhou 311305 China
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