Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method
Pure and Eu3+ doped La2O3 nanophosphor was synthesized by sol gel process. PL spectra of undoped La2O3 samples shows broad emission peaks between 400 and 600 nm and Eu3+ doped samples show PL emission peaks at 510, 515, 531, 537, 553, 578, 585, 594, 612 and 624 nm. These peaks are attributed to 5D1...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Materials Letters: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S259015082300025X |
| _version_ | 1827922508759695360 |
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| author | N Pushpa M.K. Kokila K.R. Nagabhushana |
| author_facet | N Pushpa M.K. Kokila K.R. Nagabhushana |
| author_sort | N Pushpa |
| collection | DOAJ |
| description | Pure and Eu3+ doped La2O3 nanophosphor was synthesized by sol gel process. PL spectra of undoped La2O3 samples shows broad emission peaks between 400 and 600 nm and Eu3+ doped samples show PL emission peaks at 510, 515, 531, 537, 553, 578, 585, 594, 612 and 624 nm. These peaks are attributed to 5D1 → 7F2, 5D1 → 7F2, 5D0 → 7F0, 5D0 → 7F1,5D0 → 7F2 transitions of Eu3 + ions. The electronic dipole transition corresponding to5D0 → 7F2 (624, 612 nm) is stronger than the magnetic dipole transition of 5D0 → 7F1 (585, 594 nm) of Eu3+ ions. Luminescence behavior of Eu3+ in La2O3 is analyzed by Judd–Ofelt intensity parameters. |
| first_indexed | 2024-03-13T04:43:43Z |
| format | Article |
| id | doaj.art-c10a7915c1424e0b9c4d78f059a3ff03 |
| institution | Directory Open Access Journal |
| issn | 2590-1508 |
| language | English |
| last_indexed | 2024-03-13T04:43:43Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Letters: X |
| spelling | doaj.art-c10a7915c1424e0b9c4d78f059a3ff032023-06-19T04:29:27ZengElsevierMaterials Letters: X2590-15082023-06-0118100205Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel methodN Pushpa0M.K. Kokila1K.R. Nagabhushana2Department of Physics, SJC Institute of Technology, Chickballapura 562101, India; Corresponding author.Department of Physics, Bangalore University, Bengaluru 560 056, IndiaFederal University of São Paulo, Santos Campus, CEP: 11070-100, Santos, SP, BrazilPure and Eu3+ doped La2O3 nanophosphor was synthesized by sol gel process. PL spectra of undoped La2O3 samples shows broad emission peaks between 400 and 600 nm and Eu3+ doped samples show PL emission peaks at 510, 515, 531, 537, 553, 578, 585, 594, 612 and 624 nm. These peaks are attributed to 5D1 → 7F2, 5D1 → 7F2, 5D0 → 7F0, 5D0 → 7F1,5D0 → 7F2 transitions of Eu3 + ions. The electronic dipole transition corresponding to5D0 → 7F2 (624, 612 nm) is stronger than the magnetic dipole transition of 5D0 → 7F1 (585, 594 nm) of Eu3+ ions. Luminescence behavior of Eu3+ in La2O3 is analyzed by Judd–Ofelt intensity parameters.http://www.sciencedirect.com/science/article/pii/S259015082300025XPhosphorsSol Gel SynthesisLanthanum oxideEu3+ ionsPhotoluminescenceJudd–Ofelt intensity parameters |
| spellingShingle | N Pushpa M.K. Kokila K.R. Nagabhushana Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method Materials Letters: X Phosphors Sol Gel Synthesis Lanthanum oxide Eu3+ ions Photoluminescence Judd–Ofelt intensity parameters |
| title | Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method |
| title_full | Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method |
| title_fullStr | Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method |
| title_full_unstemmed | Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method |
| title_short | Red luminescence from La2O3:Eu3+ nanophosphor prepared by Sol-Gel method |
| title_sort | red luminescence from la2o3 eu3 nanophosphor prepared by sol gel method |
| topic | Phosphors Sol Gel Synthesis Lanthanum oxide Eu3+ ions Photoluminescence Judd–Ofelt intensity parameters |
| url | http://www.sciencedirect.com/science/article/pii/S259015082300025X |
| work_keys_str_mv | AT npushpa redluminescencefromla2o3eu3nanophosphorpreparedbysolgelmethod AT mkkokila redluminescencefromla2o3eu3nanophosphorpreparedbysolgelmethod AT krnagabhushana redluminescencefromla2o3eu3nanophosphorpreparedbysolgelmethod |