Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Claude Fouassier"'
Publikováno v:
Encyclopedia of Inorganic and Bioinorganic Chemistry. :1-22
Autor:
Claude Fouassier, François Guillen, E. van der Kolk, C.W.E. van Eijk, A.P. Vink, Pieter Dorenbos
Publikováno v:
Journal of Luminescence. 97:212-223
We have studied the luminescence characteristics of Pr3+ in BaSiF6 powder samples co-doped with K+ in the 60– 800 nm range at room and liquid He temperature. After excitation in the 4f5d configuration of Pr3+, emission from the 1 S 0 state is obser
Publikováno v:
IEEE Transactions on Nuclear Science. 48:1158-1161
An efficient new scintillator that contains lithium, gadolinium, and boron, all three of which possess large neutron capture cross-section isotopes for highly exothermic reactions, has been recently developed. The homologous yttrium material was also
Publikováno v:
Journal of Solid State Chemistry. 156:161-167
A new type of lithium rare earth oxyborate of formula Li2Ln5O4(BO3)3 (Ln=Yb, Lu) has been discovered in the ternary phase diagrams Li2O–Ln2O3–B2O3. Single crystals of Li2Yb5O4(BO3)3 were grown by the flux method. The structure of this oxyborate w
Publikováno v:
Journal of Solid State Chemistry. 150:404-409
The crystal structure of strontium dialuminodiborate SrAl2B2O7 has been established by single-crystal X-ray diffraction methods. The compound crystallizes in the trigonal system (space group R 3 c, Z=6) with cell parameters a=4.893(1) A and c=47.78(1
Autor:
Philippe Deniard, Raymond Brec, François Guillen, Claude Fouassier, Stéphane Jobic, Pierre Macaudiere, Gilles H. Gauthier
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 2:611-616
The cerium and potassium thiosilicate KCeSiS 4 has been synthesized at 800 °C from Ce, Si, K 2 S and S precursors weighted in the K:Ce:Si:S = 1:1:1.15:4.3 ratio. This yellow, air stable compound crystallizes in the monoclinic space group P2 1 , (No.
Publikováno v:
Journal of Solid State Chemistry. 146:189-196
A new family of lithium rare earth oxyborates of formula LiLn6O5(BO3)3 (Ln=Pr–Tm) has been discovered in the ternary-phase diagrams Li2O–Ln2O3–B2O3. Single crystals of LiGd6O5(BO3)3 were grown by the flux method. The structure of the oxyborate
Autor:
Alain Garcia, Paul Hagenmuller, Claude Fouassier, Michel Pouchard, Bernard Jacquier, Jean-Pierre Chaminade, T. Gaewdang, Pierre Gravereau
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 620:1965-1970
The crystal structures of the ordinary pressure forms of indium digermanate In2Ge2O7 and disilicate In2Si2O7 have been studied from X-ray powder diffraction data by Rietveld refinement. They are closely related to that of the thortveitite which cryst
Publikováno v:
Chemical Physics Letters. 229:139-142
Luminescence properties of cerium in the dense tysonite-type BaThF6 and PbThF6 hosts have been investigated. In the barium phase the emission shows high quantum efficiency at 300 K. In PbThF6 strong thermal quenching above 20 K is ascribed to photoio
Autor:
Jean-Pierre Chaminade, T. Gaewdang, Claude Fouassier, Michel Pouchard, Bernard Jacquier, Alain Garcia, Paul Hagenmuller
Publikováno v:
Materials Letters. 18:64-68
Single crystals of indium tungstate In 6 WO 12 have been grown by chemical vapor deposition using TeCl 4 as a transport agent. Isometric as well as octahedral-shaped transparent crystals are obtained with a size attaining 2 mm. The luminescence of bo