| Title |
|
|
|
Structural and luminescence investigation on gadolinium gallium garnet nanocrystalline powders prepared by solution combustion synthesis
| |
| Author |
|
|
|
| |
| Abstract |
|
|
|
| Nanocrystalline powders of undoped and lanthanide (Pr3+, Tm3+)- doped gadolinium gallium garnet, Gd3Ga5O12 (GGG), were prepared by propellant synthesis and studied by x-ray powder diffraction (XRD), electron diffraction (ED), high-resolution electron microscopy (HREM) and luminescence spectroscopy. The x-ray diffraction patterns of the GGG samples were analysed using the Rietveld method. The Rietveld refinement reveals the existence of two garnet-type phases: both are cubic (space group Ia $(3) over bar $d) with a slightly different lattice parameter and probably a slightly different composition. Electron diffraction and electron microscopy measurements confirm the x-ray diffraction results. EDX measurements for lanthanide-doped samples show that stable solid solutions with composition Gd(3-x)Ln(x)Ga(5)O(12), x approximate to 0.3 ( Ln = Pr; Tm) have been obtained. The luminescence properties of the Tm3+ -doped nanocrystalline GGG samples were measured and analysed. |
| |
| Language |
|
|
|
English
| |
| Source (journal) |
|
|
|
Nanotechnology. - Bristol | |
| Publication |
|
|
|
Bristol : 2007
| |
| ISSN |
|
|
|
0957-4484
| |
| Volume/pages |
|
|
|
18:32(2007), p. 1-9
| |
| Article Reference |
|
|
|
325604
| |
| ISI |
|
|
|
000248231300010
| |
| Medium |
|
|
|
E-only publicatie
| |
| Full text (Publisher's DOI) |
|
|
| | |
| Full text (publisher's version - intranet only) |
|
|
| | |
|