Abstract
The water splitting properties of InGaN photoanodes equipped with ZnO nanowires were examined in this study. Over the solar spectrum range, the absorbance exhibited a remarkable increase due to the enhanced light absorption caused by the ZnO nanowires. By varying the ZnO nanowires length, the photo-to-current density of photoanodes was increased from 0.017 to 0.205 mA/cm2 at 1.23 V versus reversible hydrogen electrode. Consequently, the incident-photon-to-current efficiency was increased by a factor of 5.5 as the ZnO nanowires growth time increased from 2 to 4 h. The results of this research demonstrate the importance of light absorbance and the surface reaction sites of photoanodes on energy harvesting.
Original language | English |
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Article number | 34 |
Journal | Nano Convergence |
Volume | 3 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2016 Dec |
Bibliographical note
Publisher Copyright:© The Author(s) 2016.
Keywords
- GaN
- Nanowire
- Photoanode
- ZnO
ASJC Scopus subject areas
- General Materials Science
- General Engineering