Syntheses and Characterisation of Gd3Al5O12 and La3Al5O12 Garnets

A sol-gel method based on in situ generation of mixed-metal chelates by complexing metal ions with ethane-1,2-diol in aqueous media has been elaborated to prepare lanthanide-ion containing garnets, Gd3Al5O12 (GAG) and La3Al5O12 (LAG). XRD patterns of the powders sintered at 1 000 oC revealed the formation of monophasic GAG. However, LAG does not form under the same experimental conditions. The phase composition of the samples was characterised by IR spectroscopy. Microstructural features of the polycrystalline garnets were studied by SEM.

[1]  Z. Fu,et al.  Spectral properties of rare-earth ions in nanocrystalline YAG:Re (Re = Ce3+, Pr3+, Tb3+) , 2006 .

[2]  G. Chadeyron,et al.  Sol-gel elaboration and characterization of YAG: Tb3+ powdered phosphors , 2006 .

[3]  Hitoshi Kuma,et al.  Glycothermal synthesis and photoluminescence of YAG:Ce3+ nanophosphors , 2006 .

[4]  T. Jüstel,et al.  Sol-Gel Preparation and Characterization of Codoped Yttrium Aluminium Garnet Powders , 2005 .

[5]  J. Pinkas,et al.  Synthesis and evolution of crystalline garnet phases in Y3Sc5– x Ga x O12 , 2005 .

[6]  W. Yen.  General factors governing the efficiency of luminescence devices , 2005 .

[7]  A. Mookerjee,et al.  First-principles electronic structure calculations of R3Al5O12 (R being the rare-earth elements Ce–Lu) , 2005 .

[8]  Chung‐Hsin Lu,et al.  Sol-gel pyrolysis and photoluminescent characteristics of europium-ion doped yttrium aluminum garnet nanophosphors , 2004 .

[9]  A. Winnacker,et al.  Simultaneous excitation of Ce3+ and Eu3+ ions in Tb3Al5O12 , 2004 .

[10]  W. Stręk,et al.  Luminescence properties of Tb3+:Y3Al5O12 nanocrystallites prepared by the sol–gel method , 2004 .

[11]  Mingmei Wu,et al.  Tailored photoluminescence of YAG:Ce phosphor through various methods , 2004 .

[12]  Yuexiao Pan,et al.  Comparative investigation on synthesis and photoluminescence of YAG:Ce phosphor , 2004 .

[13]  S. Mathur,et al.  Evidence of the formation of mixed-metal garnets via sol–gel synthesis , 2003 .

[14]  Daniel Vivien,et al.  Spectroscopic properties of Yb-doped scandium based compounds Yb:CaSc2O4, Yb:SrSc2O4 and Yb:Sc2SiO5 , 2003 .

[15]  Jun Lin,et al.  Synthesis-dependent luminescence properties of Y3Al5O12:Re3+ (Re=Ce, Sm, Tb) phosphors , 2002 .

[16]  Wieslaw Strek,et al.  Synthesis and optical properties of Nd3+-doped Y3Al5O12 nanoceramics , 2002 .

[17]  S. Maitra,et al.  Effect of CeO2 on the sintering behaviour of zirconia–alumina composite , 2002 .

[18]  Chung-Hsin Lu,et al.  Sol–gel synthesis and photoluminescent properties of cerium-ion doped yttrium aluminium garnet powders , 2002 .

[19]  R. Gajić,et al.  The growth of Nd: YAG single crystals , 2002 .

[20]  S. Hüfner,et al.  Effect of Al2O3 matrix on the optical properties of NdAlO3 in NdAlO3/Al2O3 ceramic-ceramic composite , 2001 .

[21]  H. Yagi,et al.  Optical properties and highly efficient laser oscillation of Nd:YAG ceramics , 2000, CLEO 2000.

[22]  Y. Tanabe,et al.  Phase compositions and microstructural characteristics of solidified Al2O3-rich spinel solid solution/YAG composite , 2000 .

[23]  K. Okuyama,et al.  Photoluminescence characteristics of YAG:Tb phosphor particles with spherical morphology and non-aggregation , 1999 .

[24]  R. Uecker,et al.  On the Crystallization of Terbium Aluminium Garnet , 1999, 0801.3317.

[25]  Y. Iida,et al.  In situ Raman monitoring of low-temperature synthesis of YAG from different starting materials , 1999 .

[26]  Michael Veith,et al.  Low temperature synthesis of nanocrystalline Y3Al5O12 (YAG) and Ce-doped Y3Al5O12via different sol–gel methods , 1999 .

[27]  Bernard Chambaz,et al.  Liquid phase epitaxy: A versatile technique for the development of miniature optical components in single crystal dielectric media , 1999 .

[28]  M. López-Quintela,et al.  Synthesis of yttrium aluminium garnet by the citrate gel process , 1998 .

[29]  M. López-Quintela,et al.  Influence of Complexing Agents and pH on Yttrium−Iron Garnet Synthesized by the Sol−Gel Method , 1997 .

[30]  D. Massiot,et al.  71Ga Chemical Shielding and Quadrupole Coupling Tensors of the Garnet Y(3)Ga(5)O(12) from Single-Crystal (71)Ga NMR. , 1997, Inorganic chemistry.

[31]  A. Kareiva,et al.  Yttrium‐doped alumoxanes: A chimie douce route to Y3Al5O12(YAG) and Y4A12O9 (YAM) , 1997 .

[32]  A. Hofmeister,et al.  Single-crystal absorption and reflection infrared spectroscopy of birefringent grossular-andradite garnets , 1993 .