Synthesis and luminescence properties of red-emitting NaBaBi2(PO4)3:Eu3+ phosphors

Synthesis and luminescence properties of red‐emitting AlN:Mn2+ spherical phosphors

“…Due to the nephelauxetic effect and the increased crystal field strength caused by the high formal charge of N 3− , the Mn 2+ in the AlN host lattice provided a red emission, as with other Mn 2+ doped nitride phosphors 42,43 . Furthermore, Dexter's theory was used to further analyze the mechanism of energy transfer, 44 the relationship between luminescence intensity I and activator concentration X is as follows 45,46 : $$\begin{equation*}\frac{I}{X}\infty {(\beta {X}^{S/3})}^{ - 1}\,{\rm{or}}\,\lg \left( {\frac{I}{X}} \right) = C - (S/3)\lg X\end{equation*}$$where β and C are constant, S is the exponent of multielectrode interaction. S = 6, 8, and 10 represent the dipole–dipole, dipole–quadrupole, and quadrupole–quadrupole interactions, respectively.…”

“…41 Due to the nephelauxetic effect and the increased crystal field strength caused by the high formal charge of N 3− , the Mn 2+ in the AlN host lattice provided a red emission, as with other Mn 2+ doped nitride phosphors. 42,43 Furthermore, Dexter's theory was used to further analyze the mechanism of energy transfer, 44 the relationship between luminescence intensity I and activator concentration X is as follows 45,46 :…”