Self-propagating high-temperature synthesis and luminescent properties of ytterbium doped rare earth (Y, Sc, Lu) oxides nanopowders

3rd International Youth Scientific Forum with International Participation "New Materials"

Permin, D.A.^1 ; Novikova, A.V.^1 ; Balabanov, S.S.^1 ; Gavrishchuk, E.M.^1 ; Kurashkin, S.V.^1 ; Savikin, A.P.^2

G.G. Devyatykh Institute of Chemistry of High-Purity Substances RAS, Nizhny Novgorod, Russia^1

N.I. Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia^2

关键词: Comparative studies;    Emission lifetime;    Luminescence spectrum;    Luminescent property;    Lutetium oxides;    Rare earth impurities;    Self propagating high temperature synthesis;    Ytterbium-doped;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/347/1/012008/pdf
DOI  :  10.1088/1757-899X/347/1/012008

来源: IOP

【 摘 要 】

This paper describes a comparative study of structural and luminescent properties of 5%Yb-doped yttrium, scandium, and lutetium oxides (Yb:RE2O3) powders and ceramics fabricated by self-propagating high-temperature synthesis. According to X-ray diffractometry and electron microscopy the chosen method ensures preparation of low-agglomerated cubic Ctype crystal structured powders at one step. No crucial differences in luminescence spectra were found the Yb:RE2O3powders and ceramics. It was shown that the emission lifetimes of the Yb:RE2O3powders are lowered by crystal structure defects, while its values for ceramics samples are compared to that of monocrystals and more influenced by rare earth impurities.