Structural study and luminescence of TlSrLa(AsO4)2

M. Lafjij (1) , N. El Jouhari (1) , A. Benabad (1) , Gilles Wallez (2) , Pierre Gravereau (3) , Alain Garcia (3) , Gilles Le Flem (3)

1 Laboratoire de Chimie du Solide Appliquée, Département de Chimie, Faculté des Sciences
2 Laboratoire de Cristallochimie du Solide
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

This work presents the crystal structure and luminescent properties of TlSrLa(AsO4)2. In this phase Tl+ ions are located in large tunnels delimited by chains of alternating (AsO4) and (Sr,La)O8 polyhedra. Thallium atoms are eightfold coordinated with C1 symmetry. Large Tl---O distances are observed revealing a low stereochemical activity of the 6s2 lone pair...

Mots clés: Luminescence; Inorganic compounds; Chemical synthesis; X-ray diffraction

Domaines: Matériaux

M. Lafjij, N. El Jouhari, A. Benabad, Gilles Wallez, Pierre Gravereau, et al.. Structural study and luminescence of TlSrLa(AsO4)2. Materials Research Bulletin, 2003, 38 (13), pp.1755-1765. ⟨10.1016/j.materresbull.2003.07.011⟩. ⟨hal-00165454⟩