Optical contrast and cycling of bistable luminescence properties in Rb2KIn(1-x)CexF6 compounds

Lucile Cornu (1) , Manuel Gaudon (1) , Olivier Toulemonde (1) , Philippe Veber (1) , Veronique Jubera (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Irradiation cycling was performed to evaluate the ageing of the redox process observed on cerium-doped Rb2KInF6 compounds. An on-off switch of monovalent indium luminescence is observed for the lowest cerium doped material, whereas a nice colourimetric contrast between a bluish-green and orange emission is generated for the material with the highest cerium content. Photoluminescent properties combined with X-ray diffraction, chemical analysis and magnetism measurements allowed an accurate characterization of the system. A complete explanation of the optical behaviour is therefore proposed. Finally, printing tests were performed to illustrate the good functionality of the prepared materials for UV sensitivity.

Domaines: Matériaux

Lucile Cornu, Manuel Gaudon, Olivier Toulemonde, Philippe Veber, Veronique Jubera. Optical contrast and cycling of bistable luminescence properties in Rb2KIn(1-x)CexF6 compounds. Dalton Transactions, 2016, 45 (8), pp.3380-3387. ⟨10.1039/C5DT04772B⟩. ⟨hal-01281218⟩