Luminescent properties of a novel Al10O3N8:Eu2+ phosphor by a mechanochemical activation route

Yin, Liang-Jun; Xie, Wenjie; Jian, Xian; Feng, Yan-Yu; Tang, Hui; Luan, Chunhong; Liang, Yongchun; Wang, Chao; Xu, Xin

doi:10.1016/j.optmat.2015.01.046

Cited by 14 publications

(9 citation statements)

References 32 publications

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“…The homogeneous distribution of Eu 2+ ions in the phosphor precursor, provided by the milling processing, led to much improved luminescence after thermal treatment. The same strategy has also been successfully applied by the groups of Yin and Riesen to the preparation of Al 10 O 3 N 8 :Eu 2+ and BaFBr:Eu 2+ phosphors. , …”

Section: Synthetic Strategies For Lanthanide-activated Phosphorsmentioning

confidence: 99%

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Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

et al. 2017

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The synthesis of lanthanide-activated phosphors is pertinent to many emerging applications, ranging from high-resolution luminescence imaging to next-generation volumetric full-color display. In particular, the optical processes governed by the 4f-5d transitions of divalent and trivalent lanthanides have been the key to enabling precisely tuned color emission. The fundamental importance of lanthanide-activated phosphors for the physical and biomedical sciences has led to rapid development of novel synthetic methodologies and relevant tools that allow for probing the dynamics of energy transfer processes. Here, we review recent progress in developing methods for preparing lanthanide-activated phosphors, especially those featuring 4f-5d optical transitions. Particular attention will be devoted to two widely studied dopants, Ce and Eu. The nature of the 4f-5d transition is examined by combining phenomenological theories with quantum mechanical calculations. An emphasis is placed on the correlation of host crystal structures with the 5d-4f luminescence characteristics of lanthanides, including quantum yield, emission color, decay rate, and thermal quenching behavior. Several parameters, namely Debye temperature and dielectric constant of the host crystal, geometrical structure of coordination polyhedron around the luminescent center, and the accurate energies of 4f and 5d levels, as well as the position of 4f and 5d levels relative to the valence and conduction bands of the hosts, are addressed as basic criteria for high-throughput computational design of lanthanide-activated phosphors.

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Section: Synthetic Strategies For Lanthanide-activated Phosphorsmentioning

confidence: 99%

“…The same strategy has also been successfully applied by the groups of Yin and Riesen to the preparation of Al 10 O 3 N 8 :Eu 2+ and BaFBr:Eu 2+ phosphors. 127,128…”

Section: Chemical Reviewsmentioning

confidence: 99%

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

et al. 2017

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“…Figure gives the Eu L 3 ‐edge XANES spectra of YSiON–HI: 0.02Eu and YSiON: 0.02Eu. The peaks at ~6977 and 6984 eV are due to Eu 2+ and Eu 3+ , respectively . The XANES results of YSiON: 0.02Eu show the existence of large amount of Eu 3+ and small Eu 2+ .…”

Section: Resultsmentioning

confidence: 92%

“…The peaks at~6977 and 6984 eV are due to Eu 2+ and Eu 3+ , respectively. [21][22][23] The XANES results of YSiON: 0.02Eu show the existence of large amount of Eu 3+ and small Eu 2+ . But there is only one peak at 6977 eV attributed to Eu 2+ for the YSiON-HI: 0.02Eu.…”

Section: Resultsmentioning

confidence: 97%

Synthesis, Crystal Structure, and Luminescence Properties of Y₄Si₂O₇N₂: Eu²⁺ Oxynitride Phosphors

et al. 2015

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Y4Si2O7N2: Eu2+ phosphor has been prepared by a pretreatment method. Reduction in Eu3+ ions into Eu2+ by the use of hydrogen iodide (HI) is verified by X‐ray absorption near‐edge structure (XANES) and electrode potential analysis. Y4Si2O7N2: Eu2+ phosphor has a broad emission band in the range of 400–500 nm. Furthermore, the effect of Zr doping on the structure and luminescence properties of Y4Si2O7N2: Eu2+ phosphor is researched. It found that the Zr doping leads to an emission blueshift, and improves the luminescence intensity and thermal quenching behavior of Y4Si2O7N2: Eu2+ phosphors. Prospectively, the pretreatment approach could be extended to develop other Eu2+‐doped compounds.

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“…In previous papers, AlON phosphors doped with different rare-earth ions have been proved to exhibit quite efficient luminescence, showing blue to green emission. − However, research on the occupancy sites of large rare-earth ions (Eu 2+ , Ce 3+ , etc.) in AlON-based phosphors is quite limited.…”

Section: Introductionmentioning

confidence: 99%

Eu Sites in Eu-Doped AlON Phosphors: Anomalous Eu Occupancy Layers

Wang¹,

Zhang²,

Zhu

et al. 2019

J. Phys. Chem. C

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Eu2+-doped aluminum oxynitride (AlON) phosphors show interesting luminescence properties. However, to date, the exact sites of Eu2+ ions in AlON lattices are unknown on account of a large mismatch of the ionic radius between Eu2+ and Al3+. In this paper, Eu occupancy sites in AlON lattices are investigated, which proves that Eu2+ ions are located at the layered structure like EuMgAl10O17 to release the lattice strain. Clarifying the Eu structure in AlON favors a comprehensive understanding of the luminescence properties of AlON:Eu phosphors and supports insight to explore other AlON-based phosphors.

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Luminescent properties of a novel Al10O3N8:Eu2+ phosphor by a mechanochemical activation route

Cited by 14 publications

References 32 publications

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

Synthesis, Crystal Structure, and Luminescence Properties of Y₄Si₂O₇N₂: Eu²⁺ Oxynitride Phosphors

Eu Sites in Eu-Doped AlON Phosphors: Anomalous Eu Occupancy Layers

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Luminescent properties of a novel Al10O3N8:Eu2+ phosphor by a mechanochemical activation route

Cited by 14 publications

References 32 publications

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects

Synthesis, Crystal Structure, and Luminescence Properties of Y4Si2O7N2: Eu2+ Oxynitride Phosphors

Eu Sites in Eu-Doped AlON Phosphors: Anomalous Eu Occupancy Layers

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Synthesis, Crystal Structure, and Luminescence Properties of Y₄Si₂O₇N₂: Eu²⁺ Oxynitride Phosphors