f-d luminescence of Pr3+ and Ce3+ in the chloro-elpasolite Cs2NaYCl6

被引：51

作者：

Laroche, M

Bettinelli, M

Girard, S

Moncogé, R

机构：

[1] ISMRA 6, CEA, UMR 6637 CNRS, Equipe MIL,CIRIL, F-14050 Caen, France

[2] Univ Verona, Dipartimento Sci & Tecnol, I-37134 Verona, Italy

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 311卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(99)00853-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A detailed study of the ultraviolet (UV) luminescence properties of the Pr3+ and Ce3+ ions in the elpasolite crystal Cs2NaYCl6 is reported. The absorption and fluorescence spectra associated with the lowest excited states of the 4f5d and 5d electronic configurations of the Pr3+ and Ce3+ ions, respectively, were recorded both at room temperature and at 77 K. The UV excitation on the Pr3+ ions was provided indirectly via a two step absorption process using the P-3(0) level of the 4f(2) configuration as an intermediate state. Pr3+ to Ce3+ energy transfer was then clearly evidenced. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：167 / 172

页数：6

共 26 条

[1] Vibronic intensities in centrosymmetric coordination compounds of the rare earths .2. A vibronic crystal field-closure-ligand polarisation model and applications to the PrCl63- and UBr62- complex ions in octahedral symmetry [J].