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- Title
Influence of Au plasmons and their synergistic effects with ZnO nanorods for photoelectrochemical water splitting applications.
- Authors
Saboor, Sayed Abdul; Sharma, Vidhika; Darboe, Ebrima L.; Doiphode, Vidya; Punde, Ashvini; Shinde, Pratibha; Jadkar, Vijaya; Hase, Yogesh; Waghmare, Ashish; Prasad, Mohit; Jadkar, Sandesh
- Abstract
Herein, Au plasmons and their synergistic effects with ZnO nanorods (ZNs) have been investigated for photoelectrochemical (PEC) water splitting application. Au plasmons and ZNs are deposited electrochemically. Au-modified nanostructures have absorption in the visible region as plasmons enhance charge transfer and inhibit charge recombination. ZNs modified with Au (deposition duration ~ 60 s) have a photo-current density of ~ 660 μA cm−2, at a bias of 1.0 V/SCE. X-ray diffraction (XRD) and scanning electron microscopy were used to study the structure and surface morphology of fabricated photoanodes. In addition, UV–Visible absorption and Photoluminescence spectroscopy were used for optical characterization. We have recorded current–voltage measurements and photo-conversion efficiency measurements to substantiate our observations of the synthesized photoanodes for future application in PEC splitting of water. We have also carried out Mott-Schottky and electrochemical impedance spectroscopy analysis. The analysis reveals that Au-modified ZNs-based photoanodes are a better proposition than their bare counterparts for PEC water splitting application.
- Subjects
ZINC oxide; NANORODS; CHARGE transfer; SURFACE morphology; SCANNING electron microscopy; DYE-sensitized solar cells
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 15, p20525
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-06564-4