Crystal structure and photoluminescence properties of novel garnet Y                         2-x                         LaCaGa                         3                         ZrO                         12                         :xLn                         3+                          (Ln = Eu and Tb) phosphors

D. A. Hakeem; D. H. Kim; S. W. Kim; K. Park

doi:10.1016/j.dyepig.2018.12.045

Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors

D. A. Hakeem, D. H. Kim, S. W. Kim, K. Park

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

A series of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (0 ≤ x ≤ 0.12; Ln = Eu and Tb) phosphors was prepared by a solid-state reaction. Their structural and photoluminescence properties were characterized by X-ray diffraction, Rietveld refinement, and photoluminescence spectroscopy. The studied Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ phosphors crystallized in a cubic garnet crystal structure and Ia3¯d space group. The Eu ³⁺ - and Tb ³⁺ -doped Y _2-x LaCaGa ₃ ZrO ₁₂ phosphors exhibited strong red and green light emissions, respectively, and high emission color purity. With increasing Tb ³⁺ content, the emitting color of the Y _2-x LaCaGa ₃ ZrO ₁₂ :xTb ³⁺ phosphors shifted to the green spectral region because of cross-relaxation among Tb ³⁺ ions. The Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn phosphors are suitable for applications in white light-emitting diode and other optoelectronic devices.

Original language	English
Pages (from-to)	715-724
Number of pages	10
Journal	Dyes and Pigments
Volume	163
DOIs	https://doi.org/10.1016/j.dyepig.2018.12.045
Publication status	Published - 2019 Apr
Externally published	Yes

Bibliographical note

Funding Information:
We also acknowledge the financial support by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, industry & Energy (No. 20184030202260 ).

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

Emission
Phosphor
Photoluminescence
Y LaCaGa ZrO

ASJC Scopus subject areas

General Chemical Engineering
Process Chemistry and Technology

Access to Document

10.1016/j.dyepig.2018.12.045

Cite this

Hakeem, D. A., Kim, D. H., Kim, S. W., & Park, K. (2019). Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors Dyes and Pigments, 163, 715-724. https://doi.org/10.1016/j.dyepig.2018.12.045

Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors . / Hakeem, D. A.; Kim, D. H.; Kim, S. W. et al.
In: Dyes and Pigments, Vol. 163, 04.2019, p. 715-724.

Research output: Contribution to journal › Article › peer-review

Hakeem, DA, Kim, DH, Kim, SW & Park, K 2019, ' Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors ', Dyes and Pigments, vol. 163, pp. 715-724. https://doi.org/10.1016/j.dyepig.2018.12.045

Hakeem DA, Kim DH, Kim SW, Park K. Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors Dyes and Pigments. 2019 Apr;163:715-724. doi: 10.1016/j.dyepig.2018.12.045

Hakeem, D. A. ; Kim, D. H. ; Kim, S. W. et al. / Crystal structure and photoluminescence properties of novel garnet Y _2-x LaCaGa ₃ ZrO ₁₂ :xLn ³⁺ (Ln = Eu and Tb) phosphors In: Dyes and Pigments. 2019 ; Vol. 163. pp. 715-724.

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title = " Crystal structure and photoluminescence properties of novel garnet Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ (Ln = Eu and Tb) phosphors ",

abstract = " A series of novel garnet Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ (0 ≤ x ≤ 0.12; Ln = Eu and Tb) phosphors was prepared by a solid-state reaction. Their structural and photoluminescence properties were characterized by X-ray diffraction, Rietveld refinement, and photoluminescence spectroscopy. The studied Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ phosphors crystallized in a cubic garnet crystal structure and Ia3¯d space group. The Eu 3+ - and Tb 3+ -doped Y 2-x LaCaGa 3 ZrO 12 phosphors exhibited strong red and green light emissions, respectively, and high emission color purity. With increasing Tb 3+ content, the emitting color of the Y 2-x LaCaGa 3 ZrO 12 :xTb 3+ phosphors shifted to the green spectral region because of cross-relaxation among Tb 3+ ions. The Y 2-x LaCaGa 3 ZrO 12 :xLn phosphors are suitable for applications in white light-emitting diode and other optoelectronic devices. ",

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author = "Hakeem, {D. A.} and Kim, {D. H.} and Kim, {S. W.} and K. Park",

note = "Funding Information: We also acknowledge the financial support by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, industry & Energy (No. 20184030202260 ). Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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AU - Park, K.

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N2 - A series of novel garnet Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ (0 ≤ x ≤ 0.12; Ln = Eu and Tb) phosphors was prepared by a solid-state reaction. Their structural and photoluminescence properties were characterized by X-ray diffraction, Rietveld refinement, and photoluminescence spectroscopy. The studied Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ phosphors crystallized in a cubic garnet crystal structure and Ia3¯d space group. The Eu 3+ - and Tb 3+ -doped Y 2-x LaCaGa 3 ZrO 12 phosphors exhibited strong red and green light emissions, respectively, and high emission color purity. With increasing Tb 3+ content, the emitting color of the Y 2-x LaCaGa 3 ZrO 12 :xTb 3+ phosphors shifted to the green spectral region because of cross-relaxation among Tb 3+ ions. The Y 2-x LaCaGa 3 ZrO 12 :xLn phosphors are suitable for applications in white light-emitting diode and other optoelectronic devices.

AB - A series of novel garnet Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ (0 ≤ x ≤ 0.12; Ln = Eu and Tb) phosphors was prepared by a solid-state reaction. Their structural and photoluminescence properties were characterized by X-ray diffraction, Rietveld refinement, and photoluminescence spectroscopy. The studied Y 2-x LaCaGa 3 ZrO 12 :xLn 3+ phosphors crystallized in a cubic garnet crystal structure and Ia3¯d space group. The Eu 3+ - and Tb 3+ -doped Y 2-x LaCaGa 3 ZrO 12 phosphors exhibited strong red and green light emissions, respectively, and high emission color purity. With increasing Tb 3+ content, the emitting color of the Y 2-x LaCaGa 3 ZrO 12 :xTb 3+ phosphors shifted to the green spectral region because of cross-relaxation among Tb 3+ ions. The Y 2-x LaCaGa 3 ZrO 12 :xLn phosphors are suitable for applications in white light-emitting diode and other optoelectronic devices.

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