Boruah, Buddha Deka and Maji, Arnab and Misra, Abha (2017) Synergistic effect in the heterostructure of ZnCo2O4 and hydrogenated zinc oxide nanorods for high capacitive response. In: NANOSCALE, 9 (27). pp. 9411-9420.
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Abstract
Herein, a novel heterostructure was fabricated by combining electrochemically and optically active materials to achieve a high capacitive response of 896 F g(-1) at 5 A g(-1). A network of ZnCo2O4 nanorods (NRs) was directly grown on a three-dimensional matrix of H : ZnO NRs (ZnCo2O4/H : ZnO NRs) that offered synergistic advantages by providing an optimum ion/charge transportation path, large electrochemically active surface area, and stable capacitive response during the electrolytic process. Furthermore, the fabricated solid-state asymmetric supercapacitor ZnCo2O4/H : ZnO NRs//activated carbon induced a large potential window of 1.5 V that offered excellent energy and power densities. In addition, optically active ZnCo2O4/H : ZnO NRs were also used for the conversion of optical energy over a broad wavelength range; thus, the as-fabricated asymmetric solid-state supercapacitor could easily provide the required power for the operation of a photodetector. Therefore, the unique heterostructure of ZnCo2O4/H : ZnO NRs not only presents excellent capacitive response but also demonstrates great potential for energy conversion.
Item Type: | Journal Article |
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Publication: | NANOSCALE |
Additional Information: | Copy right for this article belongs to the ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND |
Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
Date Deposited: | 03 Aug 2017 10:20 |
Last Modified: | 03 Aug 2017 10:20 |
URI: | http://eprints.iisc.ac.in/id/eprint/57569 |
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