Issue 31, 2016

White-light emitting materials with tunable luminescence based on steady Eu(iii) doping of Tb(iii) metal–organic frameworks

Abstract

A sequence of isostructural lanthanide metal–organic frameworks, namely [Ln(Hbtca)(phen)] (Ln = Tb (1) and Eu (2), H4btca = biphenyl-2,3,3′,5′-tetracarboxylic acid and phen = 1,10-phenanthroline), has been successfully synthesized under a hydrothermal reaction. The single X-ray diffraction studies reveal that the structure of the Ln-MOFs is a double-paned 2D network. Thermogravimetric analysis has been used to characterise the Ln-MOFs, which display good thermal stability. By adjusting the ratio of Eu3+ to Tb3+, a series of co-doped lanthanide coordination polymers [EuxTb1−x(Hbtca) (phen)] (0 ≤ x ≤ 1) has been successfully acquired, with emission colors changes from an initial red, to yellow and lastly green. Excitingly, a white emission material has been successfully obtained with the ratio Eu0.0167Tb0.9833-MOF and the CIE coordinates (0.3199, 0.3381), these values are very close to the standardized values (0.3333, 0.3333).

Graphical abstract: White-light emitting materials with tunable luminescence based on steady Eu(iii) doping of Tb(iii) metal–organic frameworks

Supplementary files

Article information

Article type
Paper
Submitted
22 янв 2016
Accepted
25 фев 2016
First published
26 фев 2016

RSC Adv., 2016,6, 25689-25694

White-light emitting materials with tunable luminescence based on steady Eu(III) doping of Tb(III) metal–organic frameworks

J. Liu, W. Sun and Z. Liu, RSC Adv., 2016, 6, 25689 DOI: 10.1039/C6RA01931E

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