Low temperature luminescence and scintillation characteristics of SrWO4 crystal

Fluorescence, Phosphorescence, and Chemiluminescence

“…A SrWO 4 single crystal was successfully synthesized using the Czochralski pulling method. 114 Luminescence spectrum under X-ray excitation of a bulk SrWO 4 single crystal was observed to show a broad emission band from 300 to 700 nm at room temperature. The decay time spectrum was reported to contain two components of 2.6 ns (5.7%) and 522 ns (94.3%) at room temperature.…”

“…The LTbH:Gd was also observed to have multiple roles, including energy-transfer bridges that connect the sensitizers and Tb 3+ (in host) to enhance the characteristic emission of Tb 3+ and the phosphorescence of sensitizers, while also act as host matrixes for the sensitizers. A SrWO 4 single crystal was successfully synthesized using the Czochralski pulling method . Luminescence spectrum under X-ray excitation of a bulk SrWO 4 single crystal was observed to show a broad emission band from 300 to 700 nm at room temperature.…”

Luminescence of undoped and Eu3+ doped nanocrystalline SrWO4 scheelite: time resolved fluorescence complimented by DFT and positron annihilation spectroscopic studies

“…These broad features are attributed to intrinsic oxygen to tungsten charge transfer transition within the WO 4 2À group which has been reported by many authors. 7,10,[17][18][19][20][21][22][23][24] The interesting feature is the evident red shi of this peak in the nano domain. The peak shi is non-monotonous possibly due to distributions in the nanoparticle sizes.…”

“…Among divalent tungstates, strontium tungstate scores over others because of its unique scintillation properties even at low temperatures and ability to act as a host wherein both laser as well as Raman properties can be exploited together. 6 It also has other important applications as optical sensor, 6 scintillator, 7 laser host 8 etc. SrWO 4 belongs to scheelite family having tetragonal structure with space group I4 1 /a and point group symmetry C 4h 6 .…”

“…There are quite a few reports on photoluminescence properties of pure 7,10,[17][18][19][20][21][22][23][24] and europium doped 10,[25][26][27][28][29][30] sample. But none of these works systematically explain the effect of annealing temperature on optical properties of pure and europium doped SrWO 4 .…”