5<I>d</I>→4<I>f</I> Radiative Transition Probabilities of Ce<SUP>3+</SUP> and Eu<SUP>2+</SUP> in Crystals

Bibliographic Information

Other Title
  • 5d→4f Radiative Transition Probabilities of Ce3+ and Eu2+ in Crystals
  • 5d 4f Radiative Transition Probabilitie

Search this article

Abstract

Formulation of radiative transition probabilities of 5d1→4f1 of Ce3+ and of 4f65d→4f7 of Eu2+ in a cubic crystal field is performed using pure 5d and 4f wavefunctions. The emitting state of Ce3+ is 5d(T2) or 5d(E). The coupled states of the 4f6(7F) core and 5d(t2 or e) are taken as the emitting states of Eu2+. Line strengths are calculated for all possible transitions, and transition probability distributions over the terminal states are obtained. The estimated radiative lifetimes of Ce3+ are about a half of the observed ones. For Eu2+, the calculated lifetimes are about thirty times as long as the observed ones. The theory suggests that Ce3+ has the largest radiative transition probability in the rare-earth ions exhibiting 5d-4f luminescence.

Journal

Citations (11)*help

See more

References(9)*help

See more

Details 詳細情報について

Report a problem

Back to top