OSL studies of alkali fluoroperovskite single crystals for radiation dosimetry

Evaluation of Optically Stimulated Luminescence Properties of Tm-doped NaMgF3 Single Crystal

“…The stimulation wavelength was selected on the basis of other reports on the OSL properties of fluoroperovskite. (18,20) Before the measurement of the OSL spectrum, the sample was irradiated with X-rays of 1000 mGy. Then, the OSL dose response function was measured after X-ray irradiations at various doses from 0.1 to 10000 mGy.…”

“…For this purpose, recently, we have introduced new OSL materials, such as Ce-doped CsCl, (3) Ce-doped 30Zn 3 (PO 4 ) 2 -70Al(PO 3 ) 3 , (15) Mn-doped LiCa(Ga,Al)F 6 , (16) and rare-earthdoped LiSrAlF 6 . (17) To improve the intensity of the OSL signal, some fluoroperovskite-type materials that have ABF 3 compositions were investigated, (18)(19)(20) and Ce-doped KMgF 3 showed high sensitivity, even forty times than that of C-doped Al 2 O 3 . (21) However, it is necessary to use other elements other than K because K contains a radioactive isotope ( 40 K), which causes intrinsic radioactivity within crystals.…”

Defect clustering in an Eu-doped NaMgF3 compound and its influence on luminescent properties

“…Perovskite compounds are a class of special materials that have attracted wide attention in recent years for interesting applications, such as magnetoelectrics, 1,2 photovoltaics devices, [3][4][5][6] light-emitting diodes, 7,8 lasers, 9,10 photocatalysis, 11 memristors, 12 and ionizing radiation detectors. [13][14][15] Fluoroperovskite materials, ABF 3 (where A and B stand for alkali and alkaline earth metals, respectively), are a sub-class of perovskite compounds. In particular, NaMgF 3 is a material inserted in this family, with interesting properties related to optics and ionizing radiation dosimetry.…”

MCaHxF3−x (M = Rb, Cs): Synthesis, Structure, and Bright, Site‐Sensitive Tunable Eu2+ Luminescence

“…[ 18–19 ] Doped with rare earth ions and codoped with divalent manganese, alkali alkaline earth fluoroperovskites have been of interest for photoluminescence application and radiation dosimetry. [ 20–28 ] For instance, Sommerdijk and Bril reported on weak Eu 2+ luminescence in RbCaF 3 (475 nm at 300 K) and bright green emission in CsCaF 3 . Lately, Eu 2+ emission has also been studied in such hydride–fluoride solid solution series or hydrides with fluoride structural analogs, such as MMgH x F 3− x (M = Na, K, Rb), K 2 MgH 4 , LiMH 3 (M = Sr, Ba), LiSr 2 SiO 4 H or Sr 5 (BO 3 ) 3 H, [ 29–36 ] and a correlation between the hydride content and redshift of the emission energies was found, which can be explained by the stronger nephelauxetic effect of hydride compared to fluoride.…”

“…[18][19] Doped with rare earth ions and codoped with divalent manganese, alkali alkaline earth fluoroperovskites have been of interest for photoluminescence application and radiation dosimetry. [20][21][22][23][24][25][26][27][28] For instance, Sommerdijk and Bril reported on weak Eu 2+ luminescence in RbCaF 3 (475 nm at 300 K) and bright green emission in CsCaF 3 . Lately, Eu 2+ emission has also been studied in such hydride-fluoride solid solution series or hydrides with fluoride structural analogs, With increasing interest in mixed-anionic hydrides, a number of interesting properties have been reported.…”