Effect of W6+ dopant on the morphology and luminescence properties of NaLa(MoO4)2: Eu3+ phosphors

Journal Article · Tue May 15 04:00:00 EDT 2018 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2018.01.048· OSTI ID:22803981

Shi, Yurong ^[1]; Liu, Bitao ^[2]; Li, Chunyang; Luo, Wen; Wang, Zhenling ^[1]

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1. Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, The Key Laboratory of Rare Earth Functional Materials and Applications, Zhoukou Normal University, Zhoukou, 466001 (China)
2. Department of Research Center for Materials Interdisciplinary Science, Chongqing University of Arts and Sciences, Chongqing (China)

Highlights: • NaLa(W{sub x}Mo{sub 1−x}O{sub 4}){sub 2}: Eu{sup 3+} with various shapes were synthesized via hydrothermal method. • No structural modifier or organic solvents were used. • Morphology and luminescence properties were manipulated by mole ratio of W/Mo. • NaLa(W{sub x}Mo{sub 1−x}O{sub 4}){sub 2}:Eu{sup 3+} was brighter than that of Com-Y{sub 2}O{sub 3}: Eu{sup 3+}. - Abstract: W{sup 6+} dopant on the NaLa(MoO{sub 4}){sub 2}:Eu{sup 3+} solid solution phosphors with various shapes have been synthesized via the hydrothermal method without using any structural modifier and organic solvents. The morphology and luminescence properties of W{sup 6+} doped NaLa(MoO{sub 4}){sub 2}:Eu{sup 3+} phosphors are obtained and characterized by SEM and PL/PLE spectra. Both morphology and luminescence properties are considered to manipulate by the mole ratio of W/Mo. By increasing the W{sup 6+} amount, particle shapes are changed from rice-shaped particles to spindle-shaped, cocoon-shaped, then to layers of octahedron-shaped. Under UV light excitation, all samples show bright red light due to the characteristic 4f-4f transitions of Eu{sup 3+}. Tungstate and molybdate phosphors have higher luminescence intensity than that of tungstate and molybdate solid solution phosphors.

• OSTI ID: 22803981
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 101; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DOPED MATERIALS
EUROPIUM IONS
EXCITATION
HYDROTHERMAL SYNTHESIS
LUMINESCENCE
MOLYBDATES
MORPHOLOGY
ORGANIC SOLVENTS
PHOSPHORS
SCANNING ELECTRON MICROSCOPY
SOLID SOLUTIONS
SPECTRA
TUNGSTATES
TUNGSTEN IONS
ULTRAVIOLET RADIATION
VISIBLE RADIATION
YTTRIUM OXIDES