B. V. Padlyak, I. I. Kindrat, V. T. Adamiv, A. Drzewiecki, B. Cieniek and I. Stefaniuk
{"title":"掺杂了Sm和Cu的四硼酸锂玻璃的结构和光谱研究。","authors":"B. V. Padlyak, I. I. Kindrat, V. T. Adamiv, A. Drzewiecki, B. Cieniek and I. Stefaniuk","doi":"10.1039/D4CP01633E","DOIUrl":null,"url":null,"abstract":"<p >The local structure and spectroscopic properties of Cu–Sm co-doped Li<small><sub>2</sub></small>B<small><sub>4</sub></small>O<small><sub>7</sub></small> glass have been studied using XRD, EPR, UV-Vis-NIR absorption and luminescence methods and compared with the corresponding results for Sm-doped and Cu-doped Li<small><sub>2</sub></small>B<small><sub>4</sub></small>O<small><sub>7</sub></small> glasses. The EPR spectrum reveals an axially-symmetric signal with a characteristic hyperfine structure belonging to Cu<small><sup>2+</sup></small> ions. The Cu<small><sup>2+</sup></small>/Cu<small><sub>total</sub></small> ratio was determined. The optical absorption spectrum shows a broad, intense band attributed to Cu<small><sup>2+</sup></small> ions and several weaker narrow bands attributed to Sm<small><sup>3+</sup></small> ions. Photoluminescence (PL) and photoluminescence excitation (PLE) spectra as well as PL decay kinetics of Sm<small><sup>3+</sup></small> and Cu<small><sup>+</sup></small> ions were registered, analyzed, and discussed. The PL spectra show a broad band assigned to the 3d<small><sup>9</sup></small>4s<small><sup>1</sup></small> → 3d<small><sup>10</sup></small> transition of Cu<small><sup>+</sup></small> ions and four narrow bands assigned to the <small><sup>4</sup></small>G<small><sub>5/2</sub></small> → <small><sup>6</sup></small>H<small><sub>J</sub></small> (J = 5/2–11/2) transitions of Sm<small><sup>3+</sup></small> ions. The observed changes in PL intensity, shortening of the Sm<small><sup>3+</sup></small> lifetime and prolongation of the Cu<small><sup>+</sup></small> lifetime were explained by energy transfer from Sm<small><sup>3+</sup></small> → Cu<small><sup>+</sup></small> and re-absorption of the Sm<small><sup>3+</sup></small> emission by Cu<small><sup>2+</sup></small> ions.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" 33","pages":" 22006-22022"},"PeriodicalIF":2.9000,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural and spectroscopic studies of lithium tetraborate glass co-doped with Sm and Cu\",\"authors\":\"B. V. Padlyak, I. I. Kindrat, V. T. Adamiv, A. Drzewiecki, B. Cieniek and I. Stefaniuk\",\"doi\":\"10.1039/D4CP01633E\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The local structure and spectroscopic properties of Cu–Sm co-doped Li<small><sub>2</sub></small>B<small><sub>4</sub></small>O<small><sub>7</sub></small> glass have been studied using XRD, EPR, UV-Vis-NIR absorption and luminescence methods and compared with the corresponding results for Sm-doped and Cu-doped Li<small><sub>2</sub></small>B<small><sub>4</sub></small>O<small><sub>7</sub></small> glasses. The EPR spectrum reveals an axially-symmetric signal with a characteristic hyperfine structure belonging to Cu<small><sup>2+</sup></small> ions. The Cu<small><sup>2+</sup></small>/Cu<small><sub>total</sub></small> ratio was determined. The optical absorption spectrum shows a broad, intense band attributed to Cu<small><sup>2+</sup></small> ions and several weaker narrow bands attributed to Sm<small><sup>3+</sup></small> ions. Photoluminescence (PL) and photoluminescence excitation (PLE) spectra as well as PL decay kinetics of Sm<small><sup>3+</sup></small> and Cu<small><sup>+</sup></small> ions were registered, analyzed, and discussed. The PL spectra show a broad band assigned to the 3d<small><sup>9</sup></small>4s<small><sup>1</sup></small> → 3d<small><sup>10</sup></small> transition of Cu<small><sup>+</sup></small> ions and four narrow bands assigned to the <small><sup>4</sup></small>G<small><sub>5/2</sub></small> → <small><sup>6</sup></small>H<small><sub>J</sub></small> (J = 5/2–11/2) transitions of Sm<small><sup>3+</sup></small> ions. The observed changes in PL intensity, shortening of the Sm<small><sup>3+</sup></small> lifetime and prolongation of the Cu<small><sup>+</sup></small> lifetime were explained by energy transfer from Sm<small><sup>3+</sup></small> → Cu<small><sup>+</sup></small> and re-absorption of the Sm<small><sup>3+</sup></small> emission by Cu<small><sup>2+</sup></small> ions.</p>\",\"PeriodicalId\":99,\"journal\":{\"name\":\"Physical Chemistry Chemical Physics\",\"volume\":\" 33\",\"pages\":\" 22006-22022\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2024-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physical Chemistry Chemical Physics\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/cp/d4cp01633e\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Chemistry Chemical Physics","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/cp/d4cp01633e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Structural and spectroscopic studies of lithium tetraborate glass co-doped with Sm and Cu
The local structure and spectroscopic properties of Cu–Sm co-doped Li2B4O7 glass have been studied using XRD, EPR, UV-Vis-NIR absorption and luminescence methods and compared with the corresponding results for Sm-doped and Cu-doped Li2B4O7 glasses. The EPR spectrum reveals an axially-symmetric signal with a characteristic hyperfine structure belonging to Cu2+ ions. The Cu2+/Cutotal ratio was determined. The optical absorption spectrum shows a broad, intense band attributed to Cu2+ ions and several weaker narrow bands attributed to Sm3+ ions. Photoluminescence (PL) and photoluminescence excitation (PLE) spectra as well as PL decay kinetics of Sm3+ and Cu+ ions were registered, analyzed, and discussed. The PL spectra show a broad band assigned to the 3d94s1 → 3d10 transition of Cu+ ions and four narrow bands assigned to the 4G5/2 → 6HJ (J = 5/2–11/2) transitions of Sm3+ ions. The observed changes in PL intensity, shortening of the Sm3+ lifetime and prolongation of the Cu+ lifetime were explained by energy transfer from Sm3+ → Cu+ and re-absorption of the Sm3+ emission by Cu2+ ions.
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