M. Voda et al., SITE-SELECTIVE TIME-RESOLVED LASER SPECTROSCOPY OF EU3-XEUX (MOO4)(4)CRYSTALS( IN K5BI1), Journal of luminescence, 72-4, 1997, pp. 276-277
Time-resolved resonant fluorescence line narrowed D-5(0) --> F-7(0,1,2
) emission spectra of Eu3+ in K5Bi1-xEux (MoO4)(4) crystals show the e
xistence of two broad crystal field site distributions for Eu3+ ions.
The lifetime behaviour suggests the presence of a fast transfer proces
s between Eu3+ ions.