Flux growth and physical properties characterizations of Y1.866Eu0.134O3 and Lu1.56Gd0.41Eu0.03O3 single crystals

Philippe Veber (1) , Matias Velazquez (1) , Paul-Antoine Douissard (2) , Thierry Martin (2) , Olivier Plantevin (3) , Rekia Belhoucif (4)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 ESRF - European Synchrotron Radiation Facility
3 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
4 Laboratoire d'Electronique Quantique

Y1.866Eu0.134O3 and Lu1.56Gd0.41Eu0.03O3 single crystals of the cubic rare-earth sesquioxide phase were grown for the first time by a new flux method, in air and at temperatures between 1250 and 1100 degrees C. Magnetic susceptibility measurements performed in the former crystals suggest that a preferential dissolution of Eu3+ cations occurs on the C-2-site. Transmission measurements established the promising optical quality of the samples, especially for Lu1.56Gd0.41Eu0.03O3 in the red spectral range where most of the scintillation light is emitted. The Lu1.56Gd0.41Eu0.03O3 single crystal, grown and tested for the first time, is an efficient X-ray scintillator and its characteristics seem promising for X-ray imaging with medium spatial resolution, in terms of light output and low afterglow. Emission and transmission spectra were measured and Eu3+ Judd-Ofelt analysis was performed in both crystals. (C)2015 Optical Society of America

Mots clés: PHOSPHOR PARTICLES; SPECTROSCOPIC PROPERTIES; RARE-EARTH-OXIDES; SCINTILLATION CRYOGENIC BOLOMETERS; RE2O3 RE; LICL FLUX; SPRAY-PYROLYSIS; EUROPIUM; SESQUIOXIDE; RESOLUTION; OCIS codes: (040.6070) Solid state detectors; (140.3380) Laser materials; (140.5680) Rare earth and transition metal solid-state lasers; (160.1890) Detector materials; (160.5690) Rareearth-doped materials

Domaines: Physique [physics]; Matière Condensée [cond-mat]; Science des matériaux [cond-mat.mtrl-sci]

Philippe Veber, Matias Velazquez, Paul-Antoine Douissard, Thierry Martin, Olivier Plantevin, et al.. Flux growth and physical properties characterizations of Y1.866Eu0.134O3 and Lu1.56Gd0.41Eu0.03O3 single crystals. Optical Materials Express, 2016, 6 (1), pp.207-219. ⟨10.1364/OME.6.000207⟩. ⟨in2p3-01279494⟩