K. Park, D. H. Kim, J. W. Pi, S. Y. Gwon, E. C. Jeon, J. S. Kim
{"title":"高发射效率Ca3(PO4)2:Eu3+荧光粉的晶体结构及光致发光性能","authors":"K. Park, D. H. Kim, J. W. Pi, S. Y. Gwon, E. C. Jeon, J. S. Kim","doi":"10.1002/bio.70083","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The influence of Eu<sup>3+</sup> concentration on the crystal structure and photoluminescence (PL) properties of Ca<sub>3-<i>x</i></sub>(PO<sub>4</sub>)<sub>2</sub>:<i>x</i>Eu<sup>3+</sup> (0.06 ≤ <i>x</i> ≤ 0.10) phosphors is systematically investigated using X-ray diffraction (XRD) Rietveld refinement, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, UV-visible spectroscopy, and PL spectroscopy. The prepared phosphors exhibit a single rhombohedral phase with the space group <i>R</i>3<i>c</i>. The constituent ions occupy various crystallographic sites, including Ca(1–5), Eu(1–3), P(1–3), and O(1–10) sites. Under 397-nm excitation, the emission spectra show distinct emission peaks between 525 and 725 nm, corresponding to the <sup>5</sup>D<sub>1</sub> → <sup>7</sup>F<sub><i>j</i></sub> (<i>j =</i> 1 and 2) and <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub><i>j</i></sub> (<i>j =</i> 1, 2, 3, and 4) transitions of Eu<sup>3+</sup> ions. The concentration quenching observed in the phosphors is attributed to electric multipolar interactions. Among the prepared phosphors, Ca<sub>2.92</sub>(PO<sub>4</sub>)<sub>2</sub>:0.08Eu<sup>3+</sup> phosphor shows the highest emission efficiency and excellent color performance. These results demonstrate that Ca<sub>3-<i>x</i></sub>(PO<sub>4</sub>)<sub>2</sub>:<i>x</i>Eu<sup>3+</sup> phosphors have significant potential as red-emitting materials for white light–emitting diode (WLED) applications.</p>\n </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Crystal Structure and Photoluminescence Properties of Ca3(PO4)2:Eu3+ Phosphors With High Emission Efficiency\",\"authors\":\"K. Park, D. H. Kim, J. W. Pi, S. Y. Gwon, E. C. Jeon, J. S. Kim\",\"doi\":\"10.1002/bio.70083\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>The influence of Eu<sup>3+</sup> concentration on the crystal structure and photoluminescence (PL) properties of Ca<sub>3-<i>x</i></sub>(PO<sub>4</sub>)<sub>2</sub>:<i>x</i>Eu<sup>3+</sup> (0.06 ≤ <i>x</i> ≤ 0.10) phosphors is systematically investigated using X-ray diffraction (XRD) Rietveld refinement, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, UV-visible spectroscopy, and PL spectroscopy. The prepared phosphors exhibit a single rhombohedral phase with the space group <i>R</i>3<i>c</i>. The constituent ions occupy various crystallographic sites, including Ca(1–5), Eu(1–3), P(1–3), and O(1–10) sites. Under 397-nm excitation, the emission spectra show distinct emission peaks between 525 and 725 nm, corresponding to the <sup>5</sup>D<sub>1</sub> → <sup>7</sup>F<sub><i>j</i></sub> (<i>j =</i> 1 and 2) and <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub><i>j</i></sub> (<i>j =</i> 1, 2, 3, and 4) transitions of Eu<sup>3+</sup> ions. The concentration quenching observed in the phosphors is attributed to electric multipolar interactions. Among the prepared phosphors, Ca<sub>2.92</sub>(PO<sub>4</sub>)<sub>2</sub>:0.08Eu<sup>3+</sup> phosphor shows the highest emission efficiency and excellent color performance. These results demonstrate that Ca<sub>3-<i>x</i></sub>(PO<sub>4</sub>)<sub>2</sub>:<i>x</i>Eu<sup>3+</sup> phosphors have significant potential as red-emitting materials for white light–emitting diode (WLED) applications.</p>\\n </div>\",\"PeriodicalId\":49902,\"journal\":{\"name\":\"Luminescence\",\"volume\":\"40 1\",\"pages\":\"\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-01-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Luminescence\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/bio.70083\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Luminescence","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/bio.70083","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Crystal Structure and Photoluminescence Properties of Ca3(PO4)2:Eu3+ Phosphors With High Emission Efficiency
The influence of Eu3+ concentration on the crystal structure and photoluminescence (PL) properties of Ca3-x(PO4)2:xEu3+ (0.06 ≤ x ≤ 0.10) phosphors is systematically investigated using X-ray diffraction (XRD) Rietveld refinement, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, UV-visible spectroscopy, and PL spectroscopy. The prepared phosphors exhibit a single rhombohedral phase with the space group R3c. The constituent ions occupy various crystallographic sites, including Ca(1–5), Eu(1–3), P(1–3), and O(1–10) sites. Under 397-nm excitation, the emission spectra show distinct emission peaks between 525 and 725 nm, corresponding to the 5D1 → 7Fj (j = 1 and 2) and 5D0 → 7Fj (j = 1, 2, 3, and 4) transitions of Eu3+ ions. The concentration quenching observed in the phosphors is attributed to electric multipolar interactions. Among the prepared phosphors, Ca2.92(PO4)2:0.08Eu3+ phosphor shows the highest emission efficiency and excellent color performance. These results demonstrate that Ca3-x(PO4)2:xEu3+ phosphors have significant potential as red-emitting materials for white light–emitting diode (WLED) applications.
期刊介绍：
Luminescence provides a forum for the publication of original scientific papers, short communications, technical notes and reviews on fundamental and applied aspects of all forms of luminescence, including bioluminescence, chemiluminescence, electrochemiluminescence, sonoluminescence, triboluminescence, fluorescence, time-resolved fluorescence and phosphorescence. Luminescence publishes papers on assays and analytical methods, instrumentation, mechanistic and synthetic studies, basic biology and chemistry.
Luminescence also publishes details of forthcoming meetings, information on new products, and book reviews. A special feature of the Journal is surveys of the recent literature on selected topics in luminescence.
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