Tunable white-light emission of lanthanide(III) hybrid material based on hectorite

In this work, we present novel trivalent lanthanide ions (Ln(3+))-based luminescent hybrid materials, in which the organic ligands are covalently grafted on the hectorite templates and the Ln(3+) ions can be well immobilized by the ligands through coordination bond. The hybrid materials exhibit tunable emission colors by varying the molar ratio of Eu3+ to TP3+, and the one with Eu3+:Tb3+ = 1:1 exhibits excellent coordinate of (0.327, 0.328) located in the "white region" of the CIE 1931 chromaticity diagram (under 300 nm UV illumination). These properties make the hybrid composites suitable for fabricating optoelectronic devices such as full-color displays and white LED. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.