Preparation, structure and photoluminescence of nanoscaled-Nd: Lu3Al5O12

Crystal structure of lutetium aluminate (LUAM), Lu4Al2O9

“…In the Al 2 O 3 -Lu 2 O 3 system, where Lu has the largest atomic number among the rare-earth elements (RE), the following three phases have been reported: Lu 3 Al 5 O 12 , LuAlO 3 , and Lu 4 Al 2 O 9 . These phases have been actively investigated as host materials, not only for phosphors (Ding et al, 2011;Xiang et al, 2016;Wang et al, 2018), but also for scintillators, owing to their large radiation absorption cross sections arising from the presence of Lu. Various scintillation properties of Ce-and Pr-doped Lu 3 Al 5 O 12 and LuAlO 3 crystals have been characterized (Wojtowicz, 1999;Nikl, 2000;Wojtowicz et al, 2006;Nikl et al, 2013), and the luminescence properties of Ce-and Pr-doped Lu 4 Al 2 O 9 evaluated (Lempicki et al, 1996;Zhang et al, 1997, Zhang et al, 1998Drozdowski et al, 2005).…”

Actively Q-switched laser performance of Nd:LuAG crystal with birefringence compensator

“…The emission cross-section of Nd:LuAG is around 9.67910 -20 cm 2 (Wang et al 2010), which is approximately one third of that of Nd:YAG, 28910 -20 cm 2 , so that higher storage energy density can be accumulated inside Nd:LuAG medium. In 2011, Ding et al (2011) synthesized a novel nanoscaled-Nd:LuAG with fluorescence lifetime of 320 ls and emission cross-section (from 4F 3/2 to 4I 11/2 ) of 28.9910 -20 cm 2 . The scintillation properties of the Nd:LuAG crystal have also been evaluated (Sugiyama et al 2011).…”

Radiation-induced preparation of pure and Ce-doped lutetium aluminium garnet and its luminescent properties

“…230) has been extensively studied for its convenient physical and chemical properties (hardness, chemical stability, high density and thermal conductivity) and for possible applications as a laser crystal, phosphor or upconverter material. [9][10][11][12][13][14][15][16][17][18][19][20] Single crystalline LuAG is conveniently used as a host matrix for preparation of fast scintillating materials by doping with 5d-4f emitting rare earth ions. 10,11 The LuAG nanopowder may serve to manufacture scintillation optical ceramics, a promising and cheaper alternative to single crystals, as transparent Ce-or Pr-doped LuAG bulk ceramics have been already prepared from such a powder material with an excellent scintillation efficiency.…”

“…Due to the high efficiency and suitably positioned emission spectra, the Ce-or Pr-doped LuAG nanoparticles could mediate the formation of singlet oxygen in very high concentrations when used for X-ray based photodynamic therapy (PDTX). LuAGbased powder materials, either pure or doped with rare earths, were recently prepared by various methods, such as co-precipitation of precursors in aqueous solutions, [15][16][17] sol-gel reactions, 18,19 or solvothermal methods. 20 In those methods, a strict control of reaction conditions is necessary to obtain LuAG with sufficient phase purity and well developed (nano)crystals.…”