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Issue 27, 2019, Issue in Progress
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In situ aluminium ions regulation for quantum efficiency and light stability promotion in white light emitting material

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Abstract

In this study, we have proposed an in situ ion regulation strategy to assemble a white-light-emitting material with high stability and efficiency. A fluorescence tunable hybrid material was first fabricated by a “ship around the bottle” method in which the fluorescent dyes, disodium 2-naphthol-3,6-disulfonate (R) and ZnO Quantum Dots (QDs), were embedded into metal–organic frameworks (MOFs) in proportion. Then, the competition coordination of aluminium ions over zinc ions to R were utilized to subtly adjust the intensity of blue fluorescence, leading to an ideal white light with Commission Internationale de l'Eclairage (CIE) coordinates of (0.30, 0.33) and a high Color-Rendering Index (CRI) value of 93%. Compared with the material fabricated by the ratio tuning of the R salt and ZnO QDs directly, the in situ ions regulation strategy enabled the final product to have a higher quantum efficiency and light stability. Moreover, this strategy also settled the non-tunable problem of fluorescence due to the competition coordination effects of aluminium ions and zinc ions in the same synthetic system. This synthetic strategy and our new findings can provide more ideas for designing new white-light-emitting materials.

Graphical abstract: In situ aluminium ions regulation for quantum efficiency and light stability promotion in white light emitting material

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Supplementary files

Article information


Submitted
08 Mar 2019
Accepted
23 Apr 2019
First published
17 May 2019

This article is Open Access

RSC Adv., 2019,9, 15265-15268
Article type
Paper

In situ aluminium ions regulation for quantum efficiency and light stability promotion in white light emitting material

Q. Liu, Q. Wu, M. Nie, D. Zhang, J. Zhao and F. Liu, RSC Adv., 2019, 9, 15265
DOI: 10.1039/C9RA01763A

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