Absorption and emission of ErNbO4 powder

Structural characteristics and spectral properties of novel transparent lithium aluminosilicate glass-ceramics containing (Er,Yb)NbO4 nanocrystals

“…Among other Er-doped crystals [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15], erbium orthoniobates are promising luminescent materials [16,17]. Until now, several routes for their preparation were employed.…”

“…These crystals were also found in sol-gel grown Er-doped lithium niobate (LiNbO 3 ) ceramics [21]. [16,17,22,23] synthesized by direct powder calcination of Er 2 O 3 and Nb 2 O 5 compounds [22].…”

“…Raman spectroscopy [23], X-ray diffraction (XRD) studies [22], optical absorption and 1.54 ȝm luminescence [16,17,23] of these crystals were reported. In addition, intense green and red upconversion luminescence was detected [16,17].…”

Absorption and emission characteristics of Er3NbO7 phosphor: A comparison with ErNbO4 phosphor and Er:LiNbO3 single crystal

“…Up to date, Er 3+ spectroscopic properties of several erbium niobates, in which the Er 3+ ions are incorporated in the form of stoichiometry or impurity doping, have been studied. These erbium niobates include polycrystalline Er-doped KNbO 3 [1], Er-doped potassium Nb 2 O 5 powder in a molar ratio of 1:1 [13,14]. It was found that the Er 3+ ion in ErNbO 4 phosphor shows definitely different absorption and emission characteristics compared with that in the LiNbO 3 crystal due to different crystal structures.…”

Spectra and energy levels of Er3+ in Er2O3 powder

“…Backward scattering geometry was used to collect the fluorescence. The detailed experimental procedure was presented in previous paper [3].…”