TANG Qiang, GUO Jingyuan, GAO Li, et al. The thermoluminesence spectra of CaSO4:RE(Eu,Dy,Tm),Mn phosphors[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2017,56(5):156-160.
TANG Qiang, GUO Jingyuan, GAO Li, et al. The thermoluminesence spectra of CaSO4:RE(Eu,Dy,Tm),Mn phosphors[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2017,56(5):156-160.DOI:
Mn phosphors have been prepared by doping the rare earth ions (Eu
Dy
Tm) and Mn into CaSO
4
. The roles of RE and Mn ions dopants and their interactions in the phosphors have been studied by the methods of thermoluminesence (TL) 3D spectra. The results indicated that the dopants not only are luminescence centers
but also influence the distribution of traps. After co-doped with Mn
2+
the higher glow peaks(
>
150 ℃) of rare earth ions are not intensified
on the contrary
the lower temperature peaks are intensified obviously
and the temperature of peaks are get close to the glow peak of Mn
2+
in CaSO
4
:RE
Mn phosphors. It is confirmed that the energy transfers from Mn
2+
to the RE ions happened. The experiments also showed that the Mn
2+
will remarkably intensified the luminescence of Eu