Concentration-dependent luminescence and energy transfer of flower-like Y2(MoO4)3:Dy3+ phosphor

Tunable white light emissive Mg2SiO4:Dy3+ nanophosphor: Its photoluminescence, Judd–Ofelt and photocatalytic studies

“…The 4 F 9/2 6 H 13/2 is a hypersensitive transition and strongly influenced by the crystal field [15][16][17][18][19]. Therefore, by incorporating Dy 3+ ions in Mg 2 SiO 4 host nanophosphors it is possible to tune the emission for display applications.…”

Upconversion photoluminescence properties of SrY2(MoO4)4:Er3+/Yb3+ phosphors synthesized by a cyclic microwave-modified sol–gel method

“…The Er 3+ ion activator is the luminescence center of the UC particles, while the sensitizer enhances the UC luminescence efficiency [7][8][9] Recently, rare earth activated MR 2 (MoO 4 ) 4 (M = Ba, Sr, Ca; R = La, Gd, Y) has attracted great attention because of the its spectroscopic characteristics and excellent upconversion photoluminescence properties. Several processes have been developed to prepare these rare-earth-doped double molybdates, including solid-state reactions [9][10][11][12][13][14], co-precipitation [15,16], the sol-gel method [4][5][6][7], the hydrothermal method [17,18], the Pechini method [19,20], organic gel-thermal decomposition [21], and the microwave-assisted hydrothermal method [22]. For practical application of UC photoluminescence in products such as lasers, three-dimensional displays, light-emitting devices, and biological detectors, features such as the homogeneous UC particle size distribution and morphology need to be well defined.…”

Luminescent Activator Dy3+ Ion in Auto-Combusted Nanosized La (OH) 3

“…The blue emission corresponding to 4 F 9/2 → 6 H 15/2 transition is the magnetic transition, which is insensitive to the local environment, whereas the yellow emission corresponding to 4 F 9/2 → 6 H 13/2 transition is the hypersensitive electric dipole transition (∆L=2, ∆J=2) and its intensity is strongly affected by the crystal field around Dy 3+ ions [21,22]. Therefore, the color-tunable emissions are expected to be realized in Dy 3+ ions doped materials by changing the yellow-to-blue intensity ratio [23].…”