Study of energy transfer in KMgF3 : Eu-X (X = Gd, Cr, Ce) by the decay model of P-6(7/2) exited state of Eu2+

Citation
Hq. Su et al., Study of energy transfer in KMgF3 : Eu-X (X = Gd, Cr, Ce) by the decay model of P-6(7/2) exited state of Eu2+, CHEM P LETT, 335(1-2), 2001, pp. 17-22
Citations number
20
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
335
Issue
1-2
Year of publication
2001
Pages
17 - 22
Database
ISI
SICI code
0009-2614(20010216)335:1-2<17:SOETIK>2.0.ZU;2-V
Abstract
Energy transfer processes between Eu2+ and Gd3+, Cr3+, Ce3+ ions in KMgF3, which are difficult to study spectroscopically, have been investigated by u sing the proposed four-level decay model of the P-6(7/2) excited state of t he Eu2+ ion. Gd3+ and Ce3+ transfer its energy to the vibronic transition o f the P-6(7/2) --> S-8(7/2) transition of Eu2+, whereas Cr3+ receive energy from Eu2+ via the d-d interaction. The energy transfer from the Eu2+ 4f(6) 5d level to the Ce3+ 4f5d state is observed spectroscopically, and the ener gy transfer mechanism is discussed. (C) 2001 Elsevier Science B.V. All righ ts reserved.