| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1553555 | Superlattices and Microstructures | 2014 | 10 Pages |
•β-Zn2SiO4:Mn yellow nanophosphors were synthesized by sol–gel process.•Structural and optical characterizations were investigated.•XRD confirms the single triclinic phase of β-Zn2SiO4:Mn.•The β-Zn2SiO4 nanophosphors exhibit a nanometric size.•Strong PL bands appeared where the properties depend on Mn content.
A novel synthesis process of Mn doped β-Zn2SiO4 yellow nanophosphors based on sol–gel method is presented. These samples were prepared by a simple solid-phase reaction under natural atmosphere at 1500 °C after the incorporation of ZnO:Mn nanoparticles, in silica monolith. XRD showed the formation of zinc silicate β-phase, which shows yellow luminescence. In addition, the as-synthesized β-Zn2SiO4:Mn2+ nanophosphor exhibited intensive broad emission around 574 nm, which was attributed to the 4T1–6A1 transition in Mn2+ ions. An exponential fitting analysis has been employed to obtain the lifetime of this yellow emission (574 nm), the average lifetime was found to be 13 ms. The luminescence properties of our nanophosphors were characterized by excitation and emission spectra as well as luminescence decay.
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