Single crystals of Ba(2)NaNb(5)O(15) doped with Pr(3+) have been grown from sodium tetraborate flux. Their emission properties have been measured as a function of the doping level under different excitation and temperature conditions. The experimental observations have been accounted for by considering the effects of the crystal structure, of the doping mechanisms and of the interactions between host lattice and doping ions. The proposed conclusions have been verified by means of single crystal x-ray diffraction measurements and the resulting site occupancies of the active ions have been discussed in the light of the synthesis procedure.
Structural effects on the emission properties of Pr(3+)-doped Ba(2)NaNb(5)O(15) crystals
TONELLI, MAURO;
2010-01-01
Abstract
Single crystals of Ba(2)NaNb(5)O(15) doped with Pr(3+) have been grown from sodium tetraborate flux. Their emission properties have been measured as a function of the doping level under different excitation and temperature conditions. The experimental observations have been accounted for by considering the effects of the crystal structure, of the doping mechanisms and of the interactions between host lattice and doping ions. The proposed conclusions have been verified by means of single crystal x-ray diffraction measurements and the resulting site occupancies of the active ions have been discussed in the light of the synthesis procedure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
