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

Abstract

In this study, we successfully synthesized rare-earth-doped crystalline SrWO4 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 Dy3+ or Sm3+ ions showed strong light absorption in the UV region and blue-yellow and red light emission. To synthesize a white light phosphor, Dy3+ and Sm3+ ions were co-doped to produce a SrWO4:[Sm3+]/[Dy3+] phosphor. When the Sm3+ ion concentration was increased and the Dy3+ 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.

Room temperature synthesis of highly luminescent Eu3+ and Tb3+-doped hexagonal-phase YPO4 nanoparticles with tunable emission

“…9,10 Thus, various lanthanide-doped luminescent nanoparticles are reported in the literature. 11–31 Most common hosts that have been used for preparing such nanoparticles are NaBi(MoO 4 ) 2 , 11 SrWO 4 , 12 BaMoO 4 , 13 BaWO 4 , 14 CaMoO 4 , 15 SrMoO 4 , 16 Ca 3 Bi(PO 4 ) 3 , 17 CaAl 2 Si 2 O 8 , 18 La(PO 4 ) 19 and YPO 4 . 20–34…”