Issue 11, 2016

Self-powered fluorescence display devices based on a fast self-charging/recharging battery (Mg/Prussian blue)

Abstract

Stimuli-responsive (such as voltage and/or light) fluorescence display systems have attracted particular attention in their promising fields of application. However, there are few examples of self-powered fluorescence display devices. Here we designed and fabricated a self-powered fluorescence display device based on a fast-charging/recharging battery. The specially designed battery was composed of a Prussian blue (PB) cathode and a magnesium metal anode with a high theoretical redox potential difference (∼2.8 V). Moreover, smartly adding a trace amount of NaClO in the electrolyte could realize oxidizing PW to PB ∼480 times faster than when oxidizing without NaClO, leading to the fast self-charging and high power density (maximum power density of 13.34 mW cm−2, about two to three orders of magnitude larger than previous bio-fuel cells) of the Mg/PB battery. Most importantly, PB was used as not only the cathodic catalyst but also as an electrochromic material, making it possible to construct a self-powered and rechargeable electrochromic fluorescence display with only two electrodes. Besides, fluorescent [Ru(bpy)3]2+-doped silica nanoparticles (Ru@SiO2), were selected as the fluorescence resonance energy transfer (FRET) donor to match PB (FRET acceptor). To the best of our knowledge, we demonstrated a self-powered and rechargeable electrochromic fluorescence display with only two electrodes for the first time.

Graphical abstract: Self-powered fluorescence display devices based on a fast self-charging/recharging battery (Mg/Prussian blue)

Supplementary files

Article information

Article type
Edge Article
Submitted
26 mai 2016
Accepted
05 jul 2016
First published
05 jul 2016
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2016,7, 6721-6727

Self-powered fluorescence display devices based on a fast self-charging/recharging battery (Mg/Prussian blue)

H. Zhang, Y. Yu, L. Zhang, Y. Zhai and S. Dong, Chem. Sci., 2016, 7, 6721 DOI: 10.1039/C6SC02347A

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