Synthesis of Rare-Earth-Doped Strontium Tungstate Phosphor at Room Temperature and Applied Flexible Composite

In this study, we successfully synthesized rare-earth-doped crystalline SrWO at room temperature by co-precipitation. The results from the X-ray diffraction analysis showed a main diffraction peak related to the (112) plane. Phosphors doped with either Dy or Sm ions showed strong light absorption in...

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Bibliographic Details
Published in:Materials 2022-12, Vol.15 (24), p.8922
Main Authors: Wi, Jung-Hyun, Jung, Jae-Yong, Park, Sang-Geon
Format: Article
Language:English
Subjects:
Composite materials
Crystal structure
Crystals
Dysprosium
Electromagnetic absorption
Ion concentration
Light emission
Light-emitting diodes
Luminescence
Luminous intensity
Nitrates
Optical properties
Particle size
Phosphors
Polydimethylsiloxane
Rare earth elements
Room temperature
Structure
White light
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Summary:In this study, we successfully synthesized rare-earth-doped crystalline SrWO at room temperature by co-precipitation. The results from the X-ray diffraction analysis showed a main diffraction peak related to the (112) plane. Phosphors doped with either Dy or Sm ions showed strong light absorption in the UV region and blue-yellow and red light emission. To synthesize a white light phosphor, Dy and Sm ions were co-doped to produce a SrWO :[Sm ]/[Dy ] phosphor. When the Sm ion concentration was increased and the Dy concentration was maintained, the red light intensity increased while the blue-yellow light intensity decreased. The composites were combined with polydimethylsiloxane (PDMS), and a flexible composite material was fabricated. The composite exhibited various luminescence properties under UV and visible light, which suggested its potential for use as an LED color filter.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15248922