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Issue 10, 2020
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Lanthanide based white-light-emitting hydrogel mediated by fluorescein and carbon dots with high quantum yield and multi-stimuli responsiveness

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Abstract

Stimuli-responsive materials, especially white-light emission (WLE) hydrogels, have aroused considerable attention in fabricating smart molecular machines, devices and materials. Herein, a lanthanide based WLE hydrogel with a high quantum yield and multi-stimuli responsiveness mediated by fluorescein and carbon dots is reported. Notably, a hydrogel with pure white emission is obtained by tailoring the stoichiometric ratio of lanthanide complex, fluorescein and carbon dots. The absolute quantum yield of our WLE hydrogel reaches as high as 18.00% through resonance energy transfer among the three primary colored emitters. The dynamic nature of coordination bonds of the lanthanide complex endows the hydrogel with multi-stimuli responsiveness to pH, Fe3+ and temperature. Our work provides a straightforward strategy to prepare smart white-light emission hydrogels.

Graphical abstract: Lanthanide based white-light-emitting hydrogel mediated by fluorescein and carbon dots with high quantum yield and multi-stimuli responsiveness

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Article information


Submitted
02 Dec 2019
Accepted
16 Jan 2020
First published
17 Jan 2020

J. Mater. Chem. C, 2020,8, 3380-3385
Article type
Paper

Lanthanide based white-light-emitting hydrogel mediated by fluorescein and carbon dots with high quantum yield and multi-stimuli responsiveness

J. Xue, X. Xu, Y. Zhu and D. Yang, J. Mater. Chem. C, 2020, 8, 3380
DOI: 10.1039/C9TC06590C

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