{"title":"Eu3+发光-具有石榴石结构的Li5La3M2O12 (M = Nb, Ta)的局部结构探针","authors":"S. A. Naidu, Hansnath Tiwari","doi":"10.1063/5.0060894","DOIUrl":null,"url":null,"abstract":"Li5La2.95Eu0.05M2O12 (M= Nb, Ta) compositions with garnet structure were prepared by conventional solid state reaction technique and photoluminescence was studied. The photoluminescence disclose that the 5D0→7F2 electric dipole transition at 611 nm is predominant in both cases; a clear evidence that Eu3+ occupies a non-centrosymmetric site in these host lattices. These emission results are contrary to the reported luminescence in Y3Al5O12 (YAG). From the Eu3+ emission studies, it can be concluded that the next nearest neighbors (NNN) cations influence the Eu3+ luminescence in these garnet phases.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"36 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Eu3+ luminescence – A local structural probe in Li5La3M2O12 (M = Nb, Ta) with garnet structure\",\"authors\":\"S. A. Naidu, Hansnath Tiwari\",\"doi\":\"10.1063/5.0060894\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Li5La2.95Eu0.05M2O12 (M= Nb, Ta) compositions with garnet structure were prepared by conventional solid state reaction technique and photoluminescence was studied. The photoluminescence disclose that the 5D0→7F2 electric dipole transition at 611 nm is predominant in both cases; a clear evidence that Eu3+ occupies a non-centrosymmetric site in these host lattices. These emission results are contrary to the reported luminescence in Y3Al5O12 (YAG). From the Eu3+ emission studies, it can be concluded that the next nearest neighbors (NNN) cations influence the Eu3+ luminescence in these garnet phases.\",\"PeriodicalId\":18837,\"journal\":{\"name\":\"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020\",\"volume\":\"36 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\":\"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/5.0060894\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/5.0060894","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Eu3+ luminescence – A local structural probe in Li5La3M2O12 (M = Nb, Ta) with garnet structure
Li5La2.95Eu0.05M2O12 (M= Nb, Ta) compositions with garnet structure were prepared by conventional solid state reaction technique and photoluminescence was studied. The photoluminescence disclose that the 5D0→7F2 electric dipole transition at 611 nm is predominant in both cases; a clear evidence that Eu3+ occupies a non-centrosymmetric site in these host lattices. These emission results are contrary to the reported luminescence in Y3Al5O12 (YAG). From the Eu3+ emission studies, it can be concluded that the next nearest neighbors (NNN) cations influence the Eu3+ luminescence in these garnet phases.
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