{"title":"高效橙红激光应用的Bi2O3-B2O3-CaF2-EuF3玻璃陶瓷","authors":"Chinna Jamalaiah Bungala, Madhu Napa, Venkata Rao Kasukurthi, Pavani Krishnapuram","doi":"10.2139/ssrn.3901725","DOIUrl":null,"url":null,"abstract":"The Bi2O3-B2O3-CaF2-EuF3 (BiBCEu) glass and glass-ceramics were prepared by a controlled heat treatment method for efficient orange-red laser applications and characterized through X-ray diffraction, Raman, transmission electron microscopy, photoluminescence excitation, emission and fluorescence decay studies. The BiBCEu glass-ceramics containing Bi3B5O12 and CaF2 nanocrystallites exhibit intense orange-red luminescence through Eu3+:5D0 → 7F2 (616 nm) transition when excited at 396 nm wavelength. The radiative parameters like radiative emission probability (AR), luminescence branching-ratio (bR) and radiative decay time (τR) were determined using the intensities of Eu3+: 5D0 → 7FJ (J = 1, 2, 4) emission transitions following the Judd-Ofelt theory. The chromaticity coordinates of BiBCEu glass-ceramic heat treated at 575oC for 10 hours are situated in the orange-red part of the CIE colour diagram. The observed results confirm that BiBCEu glass-ceramic obtained by heat treatment at 575oC for 10 hours is more favourable for solid state orange-red laser applications.","PeriodicalId":18268,"journal":{"name":"Materials Engineering eJournal","volume":"82 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bi2O3-B2O3-CaF2-EuF3 Glass-Ceramics for Efficient Orange-Red Laser Applications\",\"authors\":\"Chinna Jamalaiah Bungala, Madhu Napa, Venkata Rao Kasukurthi, Pavani Krishnapuram\",\"doi\":\"10.2139/ssrn.3901725\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Bi2O3-B2O3-CaF2-EuF3 (BiBCEu) glass and glass-ceramics were prepared by a controlled heat treatment method for efficient orange-red laser applications and characterized through X-ray diffraction, Raman, transmission electron microscopy, photoluminescence excitation, emission and fluorescence decay studies. The BiBCEu glass-ceramics containing Bi3B5O12 and CaF2 nanocrystallites exhibit intense orange-red luminescence through Eu3+:5D0 → 7F2 (616 nm) transition when excited at 396 nm wavelength. The radiative parameters like radiative emission probability (AR), luminescence branching-ratio (bR) and radiative decay time (τR) were determined using the intensities of Eu3+: 5D0 → 7FJ (J = 1, 2, 4) emission transitions following the Judd-Ofelt theory. The chromaticity coordinates of BiBCEu glass-ceramic heat treated at 575oC for 10 hours are situated in the orange-red part of the CIE colour diagram. The observed results confirm that BiBCEu glass-ceramic obtained by heat treatment at 575oC for 10 hours is more favourable for solid state orange-red laser applications.\",\"PeriodicalId\":18268,\"journal\":{\"name\":\"Materials Engineering eJournal\",\"volume\":\"82 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Engineering eJournal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.3901725\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Engineering eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3901725","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Bi2O3-B2O3-CaF2-EuF3 Glass-Ceramics for Efficient Orange-Red Laser Applications
The Bi2O3-B2O3-CaF2-EuF3 (BiBCEu) glass and glass-ceramics were prepared by a controlled heat treatment method for efficient orange-red laser applications and characterized through X-ray diffraction, Raman, transmission electron microscopy, photoluminescence excitation, emission and fluorescence decay studies. The BiBCEu glass-ceramics containing Bi3B5O12 and CaF2 nanocrystallites exhibit intense orange-red luminescence through Eu3+:5D0 → 7F2 (616 nm) transition when excited at 396 nm wavelength. The radiative parameters like radiative emission probability (AR), luminescence branching-ratio (bR) and radiative decay time (τR) were determined using the intensities of Eu3+: 5D0 → 7FJ (J = 1, 2, 4) emission transitions following the Judd-Ofelt theory. The chromaticity coordinates of BiBCEu glass-ceramic heat treated at 575oC for 10 hours are situated in the orange-red part of the CIE colour diagram. The observed results confirm that BiBCEu glass-ceramic obtained by heat treatment at 575oC for 10 hours is more favourable for solid state orange-red laser applications.
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