Spatial distribution of the Yb3+ rare earth ions in Y3Al5O12 and Y2O3 optical ceramics as analyzed by TEM (Articolo in rivista)

Type
Label
  • Spatial distribution of the Yb3+ rare earth ions in Y3Al5O12 and Y2O3 optical ceramics as analyzed by TEM (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c2jm32995f (literal)
Alternative label
  • Epicier, Thierry; Boulon, Georges; Zhao, Wei; Guzik, Malgorzata; Jiang, Benxue; Ikesue, Akio; Esposito, Laura (2012)
    Spatial distribution of the Yb3+ rare earth ions in Y3Al5O12 and Y2O3 optical ceramics as analyzed by TEM
    in Journal of materials chemistry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Epicier, Thierry; Boulon, Georges; Zhao, Wei; Guzik, Malgorzata; Jiang, Benxue; Ikesue, Akio; Esposito, Laura (literal)
Pagina inizio
  • 18221 (literal)
Pagina fine
  • 18229 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • ID_PUMA: cnr.istec/2012-A0-016. Area di valutazione: 03 - Scienze chimiche. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://dx.doi.org/10.1039/c2jm32995f (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 22 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 35 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INSA de Lyon, Laboratoire MATEIS, UMR CNRS 5510, Bât. Pascal 7, 69621 Villeurbanne Cedex, France; Physical Chemistry of Luminescent Materials (LPCML), University of Lyon, UCBLyon1, UMR 5620 CNRS, 69622 Villeurbanne, France; University of Science and Technology of China (USTC), Hefei, Anhui 230026, China; Faculty of Chemistry, University of Wroc?aw, Joliot-Curie 14, PL-50-383 Wroc?aw, Poland; Key Laboratory of Transparent Opto-Functional Inorganic Materials, Chinese Academy of Sciences, Shanghai Institute of Ceramics (SICCAS), Shanghai 200050, China; World Lab. Co., Ltd., 2-4-1 Mutsuno, Atsutaku, Nagoya 456-8587, Japan; CNR-ISTEC, Faenza (literal)
Titolo
  • Spatial distribution of the Yb3+ rare earth ions in Y3Al5O12 and Y2O3 optical ceramics as analyzed by TEM (literal)
Abstract
  • There is a need to investigate the possible improvements of rare earth ion-doped transparent ceramics in terms of better optical performances for lasers, scintillators and phosphors. Especially, the spatial distribution of the rare earth ions within their host material is important for quenching processes. Results from Transmission Electron Microscopy (TEM, both conventional and high resolution TEM) and EDX (energy dispersive X-ray) quantitative chemical analysis positively show that there is no significant segregation of Yb3+ ions, the last active rare earth element, in the grain boundaries of Yb3+-doped YAG and Yb3+-doped Y2O3 polycrystalline ceramics. The large value of the Yb3+ segregation coefficient (1.09 in YAG ceramic) explains the homogeneity of this distribution, in opposition to the low values of the Ce3+ and Nd3+ segregation coefficients, the first active rare earth elements, (0.08 and 0.18 respectively in YAG ceramic), which leads to a strong segregation at grain boundaries. (literal)
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