Synthesis and upconversion luminescence spectra of (Y1–x–y Yb x Er y )2O2S solid solutions

Exploration of structural, thermal and spectroscopic properties of self-activated sulfate Eu2(SO4)3 with isolated SO4 groups

“…According to the SEM observation, the obtained europium sulfate product is mostly formed by To see the thermal stability range for Eu2(SO4)3, the TG/DSC measurements were implemented. It is well known, that rare earth salts precipitation from aqueous solutions inevitably leads to the formation of a mixture of crystalline hydrates [70,71]. Then, the main problems in the anhydrous salts formation by the thermal decomposition of their crystalline hydrates are the complete removal of all crystalline hydrate water molecules and the absence of pyrohydrolysis processes [72,73].…”

Green synthesis, structure feature and energy transfer of yellow‐emitting (Y,Gd)2O2SO4:Dy phosphors

“…Particle properties are strongly affected by the preparation strategy used and various routes have been adopted for the synthesis of rare-earth oxysulfates including combustion, [23,24] solvothermal synthesis, [25,26] solid-state reactions, [27,28] template synthesis, [29,30] and electrospinning [31] . These methods generally need/release polluting gases or are uncontrollable on particle performance.…”

Preparation and luminescence properties of SrWO4 phosphors with Ce3+ doping

“…However, in recent years, only laborious, poorly reproducible methods of producing nanoparticles are described in the literature for these objects. Hydrothermal methods are convenient for obtaining materials with different properties [21][22][23][24][25], compared with solid-phase methods; the recovery method differs in manufacturability, reproducibility, and the ability to produce a product [26][27][28][29][30][31].…”