{"title":"Ho3+/Yb3+共掺碲酸盐玻璃的下转换和高效近红外到可见上转换发射分析","authors":"Sharafudeen Kaniyarakkal , Kesavulu Culala Rajasekharaudayar , Rajesh Dagupati , Yang Li , Zhi Chen , Vijayakumar Sadasivan Nair , Shiju Edappadikkunnummal","doi":"10.1016/j.bsecv.2023.01.002","DOIUrl":null,"url":null,"abstract":"<div><p>A series of glasses with chemical composition (50−<em>x</em>−<em>y</em>) TeO<sub>2</sub>–30ZnO–10YF<sub>3</sub>–10NaF–<em>x</em>Ho<sub>2</sub>O<sub>3</sub>–<em>y</em>Yb<sub>2</sub>O<sub>3</sub> (<em>x</em> <!-->=<!--> <!-->0.5 and <em>y</em> <!-->=<!--> <!-->0.5, 1.0, 3.0, 5.0<!--> <!-->mol%) were prepared by melt-quenching procedure. The absorption spectra, excitation, down conversion emission spectra, up-conversion (UC) emission spectra and decay time measurements were analyzed. In down conversion, the visible emission transition intensity associated with <sup>5</sup>F<sub>4</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> (547<!--> <!-->nm), <sup>5</sup>F<sub>5</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> (657<!--> <!-->nm), and <sup>5</sup>F<sub>4</sub> <!-->→<!--> <sup>5</sup>I<sub>7</sub> (755<!--> <!-->nm) of Ho<sup>3+</sup> ions decreased with Yb<sup>3+</sup> concentration due to the energy transfer (ET) process from Ho<sup>3+</sup> to Yb<sup>3+</sup> ions. In up-conversion, on exciting with 980<!--> <!-->nm diode laser beam, we observed a strong green (543<!--> <!-->nm) and red (657<!--> <!-->nm) UC emissions, that refers to the energy level transitions; <sup>5</sup>F<sub>4</sub> (<sup>5</sup>S<sub>2</sub>)<!--> <!-->→<!--> <sup>5</sup>I<sub>8</sub> and <sup>5</sup>F<sub>5</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> of Ho<sup>3+</sup>. The influence of excitation power on UC intensities studies revealed that the population at <sup>5</sup>F<sub>4</sub> (<sup>5</sup>S<sub>2</sub>) and <sup>5</sup>F<sub>5</sub> levels of Ho<sup>3+</sup> ion occurs due to two-photon absorption process associated energy transfer from Yb<sup>3+</sup> to Ho<sup>3+</sup>. The influence of Yb<sup>3+</sup> doped concentration on UC was studied, and it is observed that both the green and red UC intensities improved significantly on increasing Yb<sup>3+</sup> ions concentration.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 4","pages":"Pages 379-386"},"PeriodicalIF":2.7000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Down conversion and efficient NIR to visible up-conversion emission analysis in Ho3+/Yb3+ co-doped tellurite glasses\",\"authors\":\"Sharafudeen Kaniyarakkal , Kesavulu Culala Rajasekharaudayar , Rajesh Dagupati , Yang Li , Zhi Chen , Vijayakumar Sadasivan Nair , Shiju Edappadikkunnummal\",\"doi\":\"10.1016/j.bsecv.2023.01.002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A series of glasses with chemical composition (50−<em>x</em>−<em>y</em>) TeO<sub>2</sub>–30ZnO–10YF<sub>3</sub>–10NaF–<em>x</em>Ho<sub>2</sub>O<sub>3</sub>–<em>y</em>Yb<sub>2</sub>O<sub>3</sub> (<em>x</em> <!-->=<!--> <!-->0.5 and <em>y</em> <!-->=<!--> <!-->0.5, 1.0, 3.0, 5.0<!--> <!-->mol%) were prepared by melt-quenching procedure. The absorption spectra, excitation, down conversion emission spectra, up-conversion (UC) emission spectra and decay time measurements were analyzed. In down conversion, the visible emission transition intensity associated with <sup>5</sup>F<sub>4</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> (547<!--> <!-->nm), <sup>5</sup>F<sub>5</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> (657<!--> <!-->nm), and <sup>5</sup>F<sub>4</sub> <!-->→<!--> <sup>5</sup>I<sub>7</sub> (755<!--> <!-->nm) of Ho<sup>3+</sup> ions decreased with Yb<sup>3+</sup> concentration due to the energy transfer (ET) process from Ho<sup>3+</sup> to Yb<sup>3+</sup> ions. In up-conversion, on exciting with 980<!--> <!-->nm diode laser beam, we observed a strong green (543<!--> <!-->nm) and red (657<!--> <!-->nm) UC emissions, that refers to the energy level transitions; <sup>5</sup>F<sub>4</sub> (<sup>5</sup>S<sub>2</sub>)<!--> <!-->→<!--> <sup>5</sup>I<sub>8</sub> and <sup>5</sup>F<sub>5</sub> <!-->→<!--> <sup>5</sup>I<sub>8</sub> of Ho<sup>3+</sup>. The influence of excitation power on UC intensities studies revealed that the population at <sup>5</sup>F<sub>4</sub> (<sup>5</sup>S<sub>2</sub>) and <sup>5</sup>F<sub>5</sub> levels of Ho<sup>3+</sup> ion occurs due to two-photon absorption process associated energy transfer from Yb<sup>3+</sup> to Ho<sup>3+</sup>. The influence of Yb<sup>3+</sup> doped concentration on UC was studied, and it is observed that both the green and red UC intensities improved significantly on increasing Yb<sup>3+</sup> ions concentration.</p></div>\",\"PeriodicalId\":56330,\"journal\":{\"name\":\"Boletin de la Sociedad Espanola de Ceramica y Vidrio\",\"volume\":\"62 4\",\"pages\":\"Pages 379-386\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2023-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Boletin de la Sociedad Espanola de Ceramica y Vidrio\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0366317523000055\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0366317523000055","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Down conversion and efficient NIR to visible up-conversion emission analysis in Ho3+/Yb3+ co-doped tellurite glasses
A series of glasses with chemical composition (50−x−y) TeO2–30ZnO–10YF3–10NaF–xHo2O3–yYb2O3 (x = 0.5 and y = 0.5, 1.0, 3.0, 5.0 mol%) were prepared by melt-quenching procedure. The absorption spectra, excitation, down conversion emission spectra, up-conversion (UC) emission spectra and decay time measurements were analyzed. In down conversion, the visible emission transition intensity associated with 5F4 → 5I8 (547 nm), 5F5 → 5I8 (657 nm), and 5F4 → 5I7 (755 nm) of Ho3+ ions decreased with Yb3+ concentration due to the energy transfer (ET) process from Ho3+ to Yb3+ ions. In up-conversion, on exciting with 980 nm diode laser beam, we observed a strong green (543 nm) and red (657 nm) UC emissions, that refers to the energy level transitions; 5F4 (5S2) → 5I8 and 5F5 → 5I8 of Ho3+. The influence of excitation power on UC intensities studies revealed that the population at 5F4 (5S2) and 5F5 levels of Ho3+ ion occurs due to two-photon absorption process associated energy transfer from Yb3+ to Ho3+. The influence of Yb3+ doped concentration on UC was studied, and it is observed that both the green and red UC intensities improved significantly on increasing Yb3+ ions concentration.
期刊介绍：
The Journal of the Spanish Ceramic and Glass Society publishes scientific articles and communications describing original research and reviews relating to ceramic materials and glasses. The main interests are on novel generic science and technology establishing the relationships between synthesis, processing microstructure and properties of materials. Papers may deal with ceramics and glasses included in any of the conventional categories: structural, functional, traditional, composites and cultural heritage. The main objective of the Journal of the Spanish Ceramic and Glass Society is to sustain a high standard research quality by means of appropriate reviewing procedures.
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