Zeng, XQ Hong, GY Pyun, Chong Hong Kim, CH 2024-01-21T13:37:23Z 2024-01-21T13:37:23Z 2021-09-04 2000-09 1002-0721 https://pubs.kist.re.kr/handle/201004/141153 CaY1-xBO4: xEu was synthesied by solid state reaction method, and the displacement and luminescence of the Eu3+ in CaYBO4 host were studied. Two luminescent centers could be observed at certain Eu3+-concentration, indicating that the Eu3+ occupies two different crystallographic sites. This result shows that the Eu3+ occupies two different Y3+ sites in CaYBO4. The investigation on Eu-O charge transfer bands indicates that the larger distortion or the lower symmetry of Eu3+ site is,the shorter wavelength of the Eu-O charge transfer band is. When the Eu3+-concentration is high (x > 0.10), Eu3+ occupies the sites of Ca2+ and is reduced to Eu2+. English INT ACADEMIC PUBL EFFICIENCY OXIDES Displacement and luminescence of Eu3+ in CaYBO4 Article 1 JOURNAL OF RARE EARTHS, v.18, no.3, pp.182 - 185 JOURNAL OF RARE EARTHS 18 3 182 185 scie scopus 000089231300006 2-s2.0-0034262110 Chemistry, Applied Chemistry Article EFFICIENCY OXIDES rare earths europium CaYBO4 lattice displacement luminescence