Structural Refinement, Core–Shell Electron Structure, Enhanced Phosphorescence, and Splitting of 5D0 → 7F2 Transitions in Li-doped Rare Earth Oxide Systems.
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| Title: | Structural Refinement, Core–Shell Electron Structure, Enhanced Phosphorescence, and Splitting of 5D |
|---|---|
| Authors: | Riyas, K. M.1 (AUTHOR), Sreedevi, S.1 (AUTHOR), Jayaram, Peediyekkal1 (AUTHOR) jayarampnair@gmail.com, Prasannan, Prasoon1 (AUTHOR), Sona, C. P.1 (AUTHOR), Sabna, M.1 (AUTHOR), Khoroshko, Liudmila2,3 (AUTHOR), Baglov, Aleksey2,3 (AUTHOR) |
| Source: | Journal of Electronic Materials. Feb2025, Vol. 54 Issue 2, p1369-1380. 12p. |
| Subjects: | Rare earth oxides, Electric dipole transitions, Physical & theoretical chemistry, X-ray photoelectron spectra, X-ray photoelectron spectroscopy, Photoluminescence, Diffraction patterns |
| Abstract: | Significant crystal field splitting and an enhancement in phosphorescence have been observed in the electric dipole transitions from 5D0 to 7F2 in Li-doped Eu3+:Gd2O3 compounds, which were synthesized using the high-temperature solid-state reaction technique. X-ray diffraction pattern analysis confirmed the formation of single-phase crystals, predominantly exhibiting the monoclinic phase characteristic of Gd2O3. Scanning electron microscopy and subsequent analysis demonstrated a dense distribution of microparticles, with average sizes ranging from 1.5 μm to 2 μm. The application of x-ray photoelectron spectroscopy facilitated the accurate identification of the constituent elements. The narrow-scan x-ray photoelectron spectra distinctly revealed the presence of Eu 3d, Li 1s, Gd 4d, and O 1s signals, and their deconvolution provided valuable insights into the stability of the valence states within the compound systems. Furthermore, the deep-level photoluminescence spectra indicated a significant increase in multiple emissions within the orange–red spectral range. These emissions, attributed to the transitions 5D0 → 7F2, 5D0 → 7F1, and 5D0 → 7F0 states, are associated with the Eu activators, and the observed enhancement in intensity is linked to the crystallographic asymmetries introduced by Li ions. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 182077599 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Structural Refinement, Core–Shell Electron Structure, Enhanced Phosphorescence, and Splitting of <superscript>5</superscript>D<subscript>0</subscript> → <superscript>7</superscript>F<subscript>2</subscript> Transitions in Li-doped Rare Earth Oxide Systems. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Riyas%2C+K%2E+M%2E%22">Riyas, K. M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sreedevi%2C+S%2E%22">Sreedevi, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jayaram%2C+Peediyekkal%22">Jayaram, Peediyekkal</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jayarampnair@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Prasannan%2C+Prasoon%22">Prasannan, Prasoon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sona%2C+C%2E+P%2E%22">Sona, C. P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sabna%2C+M%2E%22">Sabna, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khoroshko%2C+Liudmila%22">Khoroshko, Liudmila</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baglov%2C+Aleksey%22">Baglov, Aleksey</searchLink><relatesTo>2,3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Electronic+Materials%22">Journal of Electronic Materials</searchLink>. Feb2025, Vol. 54 Issue 2, p1369-1380. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Rare+earth+oxides%22">Rare earth oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+dipole+transitions%22">Electric dipole transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectra%22">X-ray photoelectron spectra</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectroscopy%22">X-ray photoelectron spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence%22">Photoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Diffraction+patterns%22">Diffraction patterns</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Significant crystal field splitting and an enhancement in phosphorescence have been observed in the electric dipole transitions from 5D0 to 7F2 in Li-doped Eu3+:Gd2O3 compounds, which were synthesized using the high-temperature solid-state reaction technique. X-ray diffraction pattern analysis confirmed the formation of single-phase crystals, predominantly exhibiting the monoclinic phase characteristic of Gd2O3. Scanning electron microscopy and subsequent analysis demonstrated a dense distribution of microparticles, with average sizes ranging from 1.5 μm to 2 μm. The application of x-ray photoelectron spectroscopy facilitated the accurate identification of the constituent elements. The narrow-scan x-ray photoelectron spectra distinctly revealed the presence of Eu 3d, Li 1s, Gd 4d, and O 1s signals, and their deconvolution provided valuable insights into the stability of the valence states within the compound systems. Furthermore, the deep-level photoluminescence spectra indicated a significant increase in multiple emissions within the orange–red spectral range. These emissions, attributed to the transitions 5D0 → 7F2, 5D0 → 7F1, and 5D0 → 7F0 states, are associated with the Eu activators, and the observed enhancement in intensity is linked to the crystallographic asymmetries introduced by Li ions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11664-024-11651-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1369 Subjects: – SubjectFull: Rare earth oxides Type: general – SubjectFull: Electric dipole transitions Type: general – SubjectFull: Physical & theoretical chemistry Type: general – SubjectFull: X-ray photoelectron spectra Type: general – SubjectFull: X-ray photoelectron spectroscopy Type: general – SubjectFull: Photoluminescence Type: general – SubjectFull: Diffraction patterns Type: general Titles: – TitleFull: Structural Refinement, Core–Shell Electron Structure, Enhanced Phosphorescence, and Splitting of 5D0 → 7F2 Transitions in Li-doped Rare Earth Oxide Systems. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Riyas, K. M. – PersonEntity: Name: NameFull: Sreedevi, S. – PersonEntity: Name: NameFull: Jayaram, Peediyekkal – PersonEntity: Name: NameFull: Prasannan, Prasoon – PersonEntity: Name: NameFull: Sona, C. P. – PersonEntity: Name: NameFull: Sabna, M. – PersonEntity: Name: NameFull: Khoroshko, Liudmila – PersonEntity: Name: NameFull: Baglov, Aleksey IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03615235 Numbering: – Type: volume Value: 54 – Type: issue Value: 2 Titles: – TitleFull: Journal of Electronic Materials Type: main |
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