Photoluminescence characteristics and the energy transfer between Ce3+ and
Eu2+ in BaLiF3 host lattice have been investigated. A series of concentrati
ons of Ce3+ ion with a fixed Eu2+ concentration in doubly doped BaLiF3:Ce3,Eu2+ have been studied. According to the defects forming after Eu2+ and Ce
3+ entering the host lattice, cerium ions occupy the positions of nearest n
eighbors of the europium ions. The energy transfer probability and critical
distance are calculated. (C) 1999 Elsevier Science Ltd. All rights reserve
d.