Structural effects on the emission properties of Pr3+-doped Ba2NaNb5O15 crystals

Enrico Cavalli (1) , Gianluca Calestani (1) , Francesco Mezzadri (1) , Raffaele Faoro (2) , Mauro Tonelli (2) , Philippe Boutinaud (3)

1 Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica
2 Dipartimento di Fisica
3 Clermont Université

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.

Mots clés: Physical Sciences

Enrico Cavalli, Gianluca Calestani, Francesco Mezzadri, Raffaele Faoro, Mauro Tonelli, et al.. Structural effects on the emission properties of Pr3+-doped Ba2NaNb5O15 crystals. Journal of Physics D: Applied Physics, 2010, 43 (45), pp.455404. ⟨10.1088/0022-3727/43/45/455404⟩. ⟨hal-00569742⟩