Study of the phase behavior of Eu2O3 under pressure via luminescence of Eu3+

Photoluminescence of as an indication of crystal structure and particle size in nanoparticles synthesized by flame spray pyrolysis

“…In view of the hypersensitivity of the Eu 3+ ion to its environment (Bihari et al, 1997;Chen et al, 1992), the results from Figs. 5 and 6 are a strong indication that nanoparticles in the two fractions (small and big) have different crystal structures.…”

“…Different sites give rise to unique fluorescent spectra. As a characterization technique, optical studies of the lanthanide emission spectra are very sensitive probes of the crystal structure (Chen, Stump, Haire, & Peterson, 1992). This makes it possible to use laser-induced fluorescence (LIF) to study the crystal structure of the nanoparticles-so called site-selective optical spectroscopy (Eilers & Tissue, 1996;Williams, Yuan, & Tissue, 1999).…”

The enhancement of luminescence in Co-doped cubic Eu2O3 using Li+ and Al3+ ions

“…Numerous optical spectroscopic and luminescence studies have been focused on the Eu 3 þ ions. Nevertheless, only a few studies [1][2][3] have been done regarding the luminescence properties of bulk Eu 2 O 3 . The reason for the scarcity of Eu 2 O 3 studies is mainly ascribed to the very low luminescent intensity of Eu 2 O 3 regardless of its crystal structure.…”

Interpretation of europium(III) spectra

“…The structural changes occurring at the phase transitions are reflected in the crystal-field fine structure in the luminescence spectra [668][669][670][671][672][673][674]. Besides changes in the crystal-field splitting pattern, also changes in the intensity ratio I(…”