Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure (XAFS) at the Nd LIII-edge in the 1.3 - 20.8 % doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold value where the neodymium concentration reaches 5 at.% This experimental finding provides support for the existence of a double doping regime in Nd:YAG nanopowders.

M. Giorgetti, M. Berrettoni, M. L. Saladino, E. Caponetti (2009). Evidence for a Double Doping Regime in Nd:YAG Nanopowders. JOURNAL OF MATERIALS SCIENCE, 44, 1572-1579 [10.1007/s10853-009-3322-1].

Evidence for a Double Doping Regime in Nd:YAG Nanopowders

GIORGETTI, MARCO;BERRETTONI, MARIO;
2009

Abstract

Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure (XAFS) at the Nd LIII-edge in the 1.3 - 20.8 % doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold value where the neodymium concentration reaches 5 at.% This experimental finding provides support for the existence of a double doping regime in Nd:YAG nanopowders.
2009
M. Giorgetti, M. Berrettoni, M. L. Saladino, E. Caponetti (2009). Evidence for a Double Doping Regime in Nd:YAG Nanopowders. JOURNAL OF MATERIALS SCIENCE, 44, 1572-1579 [10.1007/s10853-009-3322-1].
M. Giorgetti; M. Berrettoni; M. L. Saladino; E. Caponetti
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/80635
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