Yb3+ as an origin of the strong anti-Stokes luminescence in NIR FT-Raman spectra of some lanthanide sesquioxides.
Strong anti-Stokes bands observed in FT-Raman spectra of Y2O3, Gd2O3 and Lu2O3 are explained by NIR luminescence of Yb3+ impurities present in sesquioxides after the excitation with the 1064 nm line of an Nd:YAG laser. Samples of Y2O3:Yb, Ga2O3:Yb, CeO2:Yb, Gd2O3:Yb and Lu2O3:Yb were prepared by solution combustion synthesis procedure using urea. All materials were investigated by FT-Raman and FT-NIR spectroscopy and characterized by X-ray powder diffraction.
Biljan
Tomislav
T
Department of Chemistry, Faculty of Science, University of Zagreb, Strossmayerov trg 14, 10000 Zagreb, Croatia. tomislav.biljan@chem.pmf.hr
Roncević
Sanda
S
Meić
Zlatko
Z
Jurcić
Kristina
K
Mestrović
Ernest
E
D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D015018:Ytterbium / Q000737:chemistry*
D028581:Lanthanoid Series Elements; D015018:Ytterbium