Bottom-up synthesis of up-converting submicron-sized Er3+-doped LiNbO3 particles

Judd–Ofelt analysis of powder samples: LiNbO3:Er3+ submicron-sized particles as a model case

“…Submicron-sized Er 3+ -doped LiNbO 3 prepared by wet chemical synthesis [10] have been used. The particles were mounted in a specially designed holder constructed by using an aluminum foil spacer with a 10 mm  5 mm rectangular opening, enclosed by two microscope slide covers, filling the cavity left in the aluminum which allows accurately measuring absorption spectra.…”

Dual second harmonic generation and up-conversion photoluminescence emission in highly-optimized LiNbO3 nanocrystals doped and co-doped with Er3+ and Yb3+

“…Synthesis and optical properties of Er 3+ -doped LiNbO 3 nanocrystals For LN nanocrystals doped with rare-earth ions, several recent studies demonstrate that the broad particle size distribution, strong aggregation degree due to the high calcination temperature and exact lanthanide content are not yet optimized and even controlled. [40][41][42] All these parameters have been found to be readily adjustable from the herein described aqueous alkoxide route that is much more prone to result in sub-50 nm LN nanocrystals and in the preparation of colloidal suspensions. Because we have recently evidenced that preformed stoichiometric moieties are produced after the initial mixing of Li and Nb ethoxides, i.e.…”

Influence of oxidant and fuel on the powder characteristics of LiNbO3 synthesized by combustion method

“…The XRD patterns shown in figure 2 [27]. In addition, according to Jardiel et al [28] a rapid quenching from the high temperature can prevent the reversible formation of LiNb 3 O 8 secondary phase on cooling. Therefore, the high temperature during the reaction R3 and the lower cooling rate during the reaction R4 (figure 1) may be responsible for the formation of LiNb 3 O 8 .…”