Issue 11, 2017

Single-component Eu3+–Tb3+–Gd3+-grafted polymer with ultra-high color rendering index white-light emission

Abstract

Through an approach of pre-coordination and following terpolymerization from vinyl-functionalized complex monomers [Ln(TTA)3(4-VB-PBI)] (Ln = Eu, 2; Ln = Tb, 3 and Ln = Gd, 4; HTTA = 2-thenoyltrifluoroacetonate; 4-VB-PBI = 1-(4-vinylbenzyl)-2-(pyridin-2-yl)-1H-benzo[d]imidazole) with methyl methacrylate, the first example of a single-component Eu2+–Tb3+–Gd3+-grafted polymer Poly(MMA-co-2-co-3-co-4) was obtained. Moreover, control of an optimal dye content for suppressing Tb3+ to Eu3+ energy transfer and exciton formation provides new perspectives for hetero-Ln3+-grafted polymers as featured in Poly(MMA-co-2-co-3-co-4) with color-tuning to direct white-light (Commission International De L'Eclairage coordinates of x = 0.322, y = 0.331; corrected color temperature of 5979 K; and color rendering index up to 94), including a highly luminous efficiency of 17.8%.

Graphical abstract: Single-component Eu3+–Tb3+–Gd3+-grafted polymer with ultra-high color rendering index white-light emission

Supplementary files

Article information

Article type
Paper
Submitted
13 11 2016
Accepted
30 12 2016
First published
20 1 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 6762-6771

Single-component Eu3+–Tb3+–Gd3+-grafted polymer with ultra-high color rendering index white-light emission

L. Liu, G. Fu, B. Li, X. Lü, W. Wong and R. A. Jones, RSC Adv., 2017, 7, 6762 DOI: 10.1039/C6RA26724F

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