Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method
The advancement of synthesis of materials with luminescence properties of lanthanoid ions in various single crystalline host compounds with low phonon energies has facilitated the optimization of numerous materials to meet the specific optical properties required for diverse applications such as new...
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Elsevier
2025-02-01
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| Series: | Optical Materials: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590147824000925 |
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| author | Hasan Yilmaz Masahiko Isobe Oliver Clemens Markus Suta Pascal Puphal |
| author_facet | Hasan Yilmaz Masahiko Isobe Oliver Clemens Markus Suta Pascal Puphal |
| author_sort | Hasan Yilmaz |
| collection | DOAJ |
| description | The advancement of synthesis of materials with luminescence properties of lanthanoid ions in various single crystalline host compounds with low phonon energies has facilitated the optimization of numerous materials to meet the specific optical properties required for diverse applications such as new energy resource exploration, light-emitting diodes (LEDs), quantum dot displays, laser technology, sensors, telecommunications, medical diagnostics and more. Enhanced analyses of the luminescence mechanism of lanthanoid ions in various host compounds, which have captivated researchers for many years and culminated in the development of innovative materials for optical applications. To obtain a deeper understanding of the luminescence mechanism of Sm3+, Eu3+, and Ho3+ ions incorporated into the Ruddlesden-Popper-type host compounds (La1-xREx)SrGaO4 (RE = Sm, Eu, Ho and x = 0; 0.05; 0.10) high quality single crystals with homogenous activator distribution grown by the optical floating zone (OFZ) method were examined systematically. X-ray diffraction (XRD) characterization shows that the compound crystallizes in a tetragonal crystal system with the space group I4/mmm (no. 139) with homogenous distribution of the dopants shown via backscattered electron (BSE) imaging. Photoluminescence studies at both 77 K and 298 K reveal that the incorporated lanthanoid ions brightly emit and even show unusual transitions due to the low cutoff phonon energy of the host compound that limits non-radiative loss pathways. Together with a high physical density of ∼6.4 g/cm3, these phosphors could be conceptualized as interesting candidates for X-ray imaging phosphors aiming at high light yields. |
| format | Article |
| id | doaj-art-97eb8e62275d4b7fb0ffc317b209f5e9 |
| institution | Kabale University |
| issn | 2590-1478 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
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| series | Optical Materials: X |
| spelling | doaj-art-97eb8e62275d4b7fb0ffc317b209f5e92025-02-08T05:01:00ZengElsevierOptical Materials: X2590-14782025-02-0125100380Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone methodHasan Yilmaz0Masahiko Isobe1Oliver Clemens2Markus Suta3Pascal Puphal4University of Stuttgart, Institute for Materials Science, Materials Synthesis Group, Heisenbergstraße 3, 70569, Stuttgart, GermanyMax-Planck-Institute for Solid State Research, Heisenbergstraße 1, D-70569, Stuttgart, GermanyUniversity of Stuttgart, Institute for Materials Science, Materials Synthesis Group, Heisenbergstraße 3, 70569, Stuttgart, Germany; Corresponding author.Inorganic Photoactive Materials, Institute of Inorganic Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany; Corresponding author.Max-Planck-Institute for Solid State Research, Heisenbergstraße 1, D-70569, Stuttgart, Germany; Corresponding author.The advancement of synthesis of materials with luminescence properties of lanthanoid ions in various single crystalline host compounds with low phonon energies has facilitated the optimization of numerous materials to meet the specific optical properties required for diverse applications such as new energy resource exploration, light-emitting diodes (LEDs), quantum dot displays, laser technology, sensors, telecommunications, medical diagnostics and more. Enhanced analyses of the luminescence mechanism of lanthanoid ions in various host compounds, which have captivated researchers for many years and culminated in the development of innovative materials for optical applications. To obtain a deeper understanding of the luminescence mechanism of Sm3+, Eu3+, and Ho3+ ions incorporated into the Ruddlesden-Popper-type host compounds (La1-xREx)SrGaO4 (RE = Sm, Eu, Ho and x = 0; 0.05; 0.10) high quality single crystals with homogenous activator distribution grown by the optical floating zone (OFZ) method were examined systematically. X-ray diffraction (XRD) characterization shows that the compound crystallizes in a tetragonal crystal system with the space group I4/mmm (no. 139) with homogenous distribution of the dopants shown via backscattered electron (BSE) imaging. Photoluminescence studies at both 77 K and 298 K reveal that the incorporated lanthanoid ions brightly emit and even show unusual transitions due to the low cutoff phonon energy of the host compound that limits non-radiative loss pathways. Together with a high physical density of ∼6.4 g/cm3, these phosphors could be conceptualized as interesting candidates for X-ray imaging phosphors aiming at high light yields.http://www.sciencedirect.com/science/article/pii/S2590147824000925LaSrGaO4Ruddlesden-popper phaseSingle crystal growthOptical float zoneScintillatorsRare earth activators |
| spellingShingle | Hasan Yilmaz Masahiko Isobe Oliver Clemens Markus Suta Pascal Puphal Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method Optical Materials: X LaSrGaO4 Ruddlesden-popper phase Single crystal growth Optical float zone Scintillators Rare earth activators |
| title | Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method |
| title_full | Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method |
| title_fullStr | Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method |
| title_full_unstemmed | Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method |
| title_short | Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method |
| title_sort | synthesis and optical properties of lasrgao4 re3 re sm eu ho single crystals via optical float zone method |
| topic | LaSrGaO4 Ruddlesden-popper phase Single crystal growth Optical float zone Scintillators Rare earth activators |
| url | http://www.sciencedirect.com/science/article/pii/S2590147824000925 |
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