Light enhanced energy storage ability through a hybrid plasmonic Ag nanowire decorated hydroxide "skin structure".

By decorating nickel copper hydroxide (NCH) with Ag nanowires (Ag NWs), a 1.7 fold enhancement in areal capacitance (5.4 F cm-2) and a 1.8 fold increment in gravimetric capacitance (3182 F g-1) under light illumination were achieved. The improved supercapacitor performances of the composites under visible-light illumination were demonstrated and a reasonable explanation for this newly-discovered phenomenon was proposed. The plasmonic effect of Ag NWs was demonstrated by hot-electron generation. The decorated Ag NWs served as a stimulus for redox reactions. This research provides a tantalizing opportunity for enhancing the supercapacitor performance by exploiting surface plasmon metals. The finding from this study will be informative for the future design of supercapacitor electrodes.

Citation

Liuyang Zhang, Diwen Shi, Tang Jiao Huang, Ruizhe Huang, Hao Gong. Light enhanced energy storage ability through a hybrid plasmonic Ag nanowire decorated hydroxide "skin structure". Nanoscale. 2017 Nov 17

PMID: 29149230

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