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Reversible regulation CdTe quantum dots fluorescence intensity based on the Prussian blue with high anti-fatigue performance

Abstract

The electrochromic fluorescence switching device based on electrochromic material Prussian blue and fluorophore CdTe quantum dots was realized. We took the advantage of layer-by-layer self-assembly technique to fix CdTe quantum dots on the surface of Prussian blue. The fluorescence intensity of the device can be reversibly regulated by the fluorescence resonance energy transfer effect (FRET) between Prussian blue and CdTe quantum dots. After optimizing the experimental conditions including redox potential, concentration of the fluorophore, pH of the electrolyte solution, system response time and so on, the fluorescence switching device ultimately demonstrated a high fluorescence contrast, short response time and especially excellent anti-fatigue property. It is noteworthy that the fluorescence contrast of the device still keeps almost unchanged after 133 cycles. Such superior fatigue resistance is rare, and the device cycle performance is up to one or two orders of magnitude higher than that of previous reports. Such integration method is facile and it also provides a pathway for the modification of other electrochromic fluorescence devices.

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Supplementary files

Publication details

The article was received on 25 Sep 2018, accepted on 03 Dec 2018 and first published on 04 Dec 2018


Article type: Communication
DOI: 10.1039/C8CC07693F
Citation: Chem. Commun., 2018, Accepted Manuscript
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    Reversible regulation CdTe quantum dots fluorescence intensity based on the Prussian blue with high anti-fatigue performance

    Q. Ma, H. Zhang, J. Chen, S. Dong and Y. Fang, Chem. Commun., 2018, Accepted Manuscript , DOI: 10.1039/C8CC07693F

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