Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1616653 | Journal of Alloys and Compounds | 2012 | 5 Pages |
Mn4+, La3+ and Ho3+ doped MgAl2Si2O8-based phosphors were first synthesized by solid state reaction. They were characterized by thermogravimetry (TG), differential thermal analysis (DTA), X-ray powder diffraction (XRD), photoluminescence (PL) and scanning electron microscopy (SEM). The phosphors were obtained at about 1300 °C. They showed broad red and fuchsia-pink emission bands in the range of 610–715 nm and had a different maximum intensity when activated by UV illumination. Such a fuchsia-pink emission can be attributed to the intrinsic d–d transitions of Mn4+.
► The new red phosphors were synthesized in the MgAl2Si2O3 system. ► These systems were characterizated with DTA/TG, XRD, SEM and PL. ► The excitation and emission mechanisms were explained.