{"title":"Dy3+,Eu3+共掺杂双钙钛矿Ca2GdNbO6荧光温度计荧光粉","authors":"Yutian Zhang, Lianjie Li, Junyu Chen, Hai Guo","doi":"10.1016/j.jlumin.2025.121482","DOIUrl":null,"url":null,"abstract":"<div><div>Fluorescent thermometers based on lanthanide-doped phosphors have broad application prospect because of their quickly response, highly sensitivity, non-contact mode and widely application scenarios. However, their relative sensitivity is limited by fixed thermal coupling energy level. Herein, Ca<sub>2</sub>GdNbO<sub>6</sub>:Dy<sup>3+</sup>,Eu<sup>3+</sup> samples possessing dual-emission centers were fabricated as fluorescence thermometers based non-thermal coupling energy level. When excited by 393.5 nm, the characteristic emissions from Dy<sup>3+</sup> and Eu<sup>3+</sup> in CGNO:Dy<sup>3+</sup>,Eu<sup>3+</sup> can be simultaneously detected. Furthermore, CGNO:Dy<sup>3+</sup>,Eu<sup>3+</sup> phosphors exhibit excellent temperature sensing performance in fluorescence intensity (FI) relied on Eu<sup>3+</sup> and fluorescence intensity ratio (FIR) relied on dual-emission centers. The maximum relative sensitivities (<em>S</em><sub>Rmax</sub>) reach 1.61 %K<sup>−1</sup> at 426 K for FI at 703 nm, 1.01 %K<sup>−1</sup> at 391 K for FIR of FI at 616 nm and FI at 576 nm, and 2.18 %K<sup>−1</sup> at 501 K for FIR of FI at 703 nm and FI at 576 nm, respectively. These findings demonstrate that Ca<sub>2</sub>GdNbO<sub>6</sub>:Dy<sup>3+</sup>,Eu<sup>3+</sup> samples are prime candidates for fluorescent thermometers.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121482"},"PeriodicalIF":3.6000,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dy3+,Eu3+ co-doped double perovskite Ca2GdNbO6 phosphors for fluorescent thermometer\",\"authors\":\"Yutian Zhang, Lianjie Li, Junyu Chen, Hai Guo\",\"doi\":\"10.1016/j.jlumin.2025.121482\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Fluorescent thermometers based on lanthanide-doped phosphors have broad application prospect because of their quickly response, highly sensitivity, non-contact mode and widely application scenarios. However, their relative sensitivity is limited by fixed thermal coupling energy level. Herein, Ca<sub>2</sub>GdNbO<sub>6</sub>:Dy<sup>3+</sup>,Eu<sup>3+</sup> samples possessing dual-emission centers were fabricated as fluorescence thermometers based non-thermal coupling energy level. When excited by 393.5 nm, the characteristic emissions from Dy<sup>3+</sup> and Eu<sup>3+</sup> in CGNO:Dy<sup>3+</sup>,Eu<sup>3+</sup> can be simultaneously detected. Furthermore, CGNO:Dy<sup>3+</sup>,Eu<sup>3+</sup> phosphors exhibit excellent temperature sensing performance in fluorescence intensity (FI) relied on Eu<sup>3+</sup> and fluorescence intensity ratio (FIR) relied on dual-emission centers. The maximum relative sensitivities (<em>S</em><sub>Rmax</sub>) reach 1.61 %K<sup>−1</sup> at 426 K for FI at 703 nm, 1.01 %K<sup>−1</sup> at 391 K for FIR of FI at 616 nm and FI at 576 nm, and 2.18 %K<sup>−1</sup> at 501 K for FIR of FI at 703 nm and FI at 576 nm, respectively. These findings demonstrate that Ca<sub>2</sub>GdNbO<sub>6</sub>:Dy<sup>3+</sup>,Eu<sup>3+</sup> samples are prime candidates for fluorescent thermometers.</div></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":\"287 \",\"pages\":\"Article 121482\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Luminescence\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022231325004223\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231325004223","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Dy3+,Eu3+ co-doped double perovskite Ca2GdNbO6 phosphors for fluorescent thermometer
Fluorescent thermometers based on lanthanide-doped phosphors have broad application prospect because of their quickly response, highly sensitivity, non-contact mode and widely application scenarios. However, their relative sensitivity is limited by fixed thermal coupling energy level. Herein, Ca2GdNbO6:Dy3+,Eu3+ samples possessing dual-emission centers were fabricated as fluorescence thermometers based non-thermal coupling energy level. When excited by 393.5 nm, the characteristic emissions from Dy3+ and Eu3+ in CGNO:Dy3+,Eu3+ can be simultaneously detected. Furthermore, CGNO:Dy3+,Eu3+ phosphors exhibit excellent temperature sensing performance in fluorescence intensity (FI) relied on Eu3+ and fluorescence intensity ratio (FIR) relied on dual-emission centers. The maximum relative sensitivities (SRmax) reach 1.61 %K−1 at 426 K for FI at 703 nm, 1.01 %K−1 at 391 K for FIR of FI at 616 nm and FI at 576 nm, and 2.18 %K−1 at 501 K for FIR of FI at 703 nm and FI at 576 nm, respectively. These findings demonstrate that Ca2GdNbO6:Dy3+,Eu3+ samples are prime candidates for fluorescent thermometers.
期刊介绍:
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.