Growth and scintillation properties of cerium doped lutetium scandium borate single crystals

The influence of Sc/Lu ratio on the phase transformation and luminescence of cerium-doped lutetium scandium orthoborate solid solutions

“…The fitting decay times are 2.5 and 21.3 ns corresponding to 6.5% and 93.5% of the total luminescence, respectively. The main component of 21.3 ns is a typical decay time in Lu 1−x Sc x BO 3 :Ce materials and can be compared with the result reported in the previous literature[18], while the cause of minor component 2.5 ns is still unclear. The effective lifetime ( )…”

“…Note that the STE luminescence of (Lu 0.5 Sc 0.5 ) 0.995 Ce 0.005 BO 3 solid solution crystal is more distinct than that of (Lu 0.5 Sc 0.5 ) 0.995 Ce 0.005 BO 3 solid solution powders. It is caused by the extremely low Ce 3+ concentration in crystal due to small segregation coefficient [18], which directly lowers nonradiative energy transfer probability from STE to Ce 3+ ion.…”

“…Nedelec et al [17] once proposed that doping with rare earth ions can prevent the phase transformation in LuBO 3 , but so far the specific rare earth ions that can stabilize the calcite phase or vaterite phase were not obtained. Just when LuBO 3 crystal research got into difficulties, Sc 3+ was reported to be a phase stabilizing ion and Lu 0.9 Sc 0.1 BO 3 :Ce single crystals were successfully obtained, even though the relative light yield of the crystal was less than 60% of BGO [18]. However, to our knowledge, the mechanisms of Sc/Lu ratio on the structural stability and luminescence characteristic in Lu 1−x Sc x BO 3 :Ce materials are still unknown, which is highly important to further Lu 1−x Sc x BO 3 :Ce crystal growth and scintillation characteristics research.…”

Czochralski growth of Lu1‐xScxBO3:Ce solid solution crystals

“…However, the specific formation reason for second inclusion needs to further research. We deduce that the formation of this kind of inclusion may be related to low Ce segregation coefficient in the LuBO 3 -ScBO 3 solid solution crystals [11]. The spectrum 3 is the background.…”

The Promising Synthetic Route Hydrothermal Synthesis of Non-Stoichiometric Cerium and Boron Containing Compounds and Characterization

“…Cerium, the most abundant rare earth metal, is generally used for doping process to synthesis rare earth borate phosphors [7,8]. The materials containing both boron and a REE are candidate in especially phosphors and many other areas, for instance catalysts, uorescence and laser applications, high temperature and scintillation techniques [3,9]. Usually, these types of compounds are synthesized by solid state reaction from oxide precursors at high temperatures and several intermediate grindings, alternatively wet-chemical synthesis route [7,1015].…”