Luminescence of neodymium in polycrystalline orthovanadates of rare-earth elements

ScVO4: Explorations of Novel Crystalline Inorganic Optical Materials in Rare-Earth Orthovanadate Systems

“…A comparison was then made among various vanadate crystals, showing that ScVO 4 has the broadest and most intense bands, making it the most promising host matrix for Nd 3þ ions. 33 Later, unusual thermal expansion behavior was found in ScVO 4 at elevated temperatures from 300 to 634 K. 34 The result was followed by a systematic study of the structure-property relationships in the thermal expansion of zircon-type RVO 4 in 1989. 35 Recently, another systematic theoretical investigation of thermal and mechanical properties has been conducted empirically on the RVO 4 family, showing that ScVO 4 has the largest bulk modulus and lattice energy density.…”

“…The first polycrystalline samples of Nd:ScVO 4 were prepared by sintering scandium oxide and vanadium pentoxide in 1973. A comparison was then made among various vanadate crystals, showing that ScVO 4 has the broadest and most intense bands, making it the most promising host matrix for Nd 3+ ions . Later, unusual thermal expansion behavior was found in ScVO 4 at elevated temperatures from 300 to 634 K .…”

CZ growth and Raman spectroscopy study of new mixed Nd-doped (Sc,Y)VO4 crystal

“…A low-temperature route of oxidation of ScVO 3 results in a stoichiometric ScVO 4 cubic fluorite; instead, a zircontype structure is stabilized [3]. Thus, scandium vanadate stabilized in a zircon [2] or in a cubic fluorite structure [3] subjected to the conditions of synthesis by a low-temperature route. The first 0.5 at% Nd:ScVO 4 crystal was successfully grown by the floating zone method in a 99.9% oxygen atmosphere; the efforts to grow ScVO 4 by CZ method failed [4].…”

“…However, Nd luminescence excitation efficiency is higher in ScVO 4 . Comparison of Nd excitation spectra in the rare-earth orthovanadates investigation showed that the widest and most intense additive radiation excitation bands are in ScVO 4 [2]. Therefore, ScVO 4 is the most promising matrix for Nd 3 + ions.…”

“…Therefore, ScVO 4 is the most promising matrix for Nd 3 + ions. The first polycrystalline samples of the Nd-doped ScVO 4 were prepared by sintering (two stages solidstate reaction) of scandium oxide and vanadium pentoxide in 1973 by Ageeva et al [2]. A low-temperature route of oxidation of ScVO 3 results in a stoichiometric ScVO 4 cubic fluorite; instead, a zircontype structure is stabilized [3].…”