Ingan-based photoanode with zno nanowires for water splitting

Junjie Kang, Vinhquang Dang, Hongjian Li, Sungjin Moon, Panpan Li, Yangdoo Kim, Chaehyun Kim, Hakjong Choi, Zhiqiang Liu, Heon Lee

Research output: Contribution to journalLetter

5 Citations (Scopus)

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 languageEnglish
Article number34
JournalNano Convergence
Volume3
Issue number1
DOIs
Publication statusPublished - 2016 Dec

Keywords

  • GaN
  • Nanowire
  • Photoanode
  • ZnO

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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    Kang, J., Dang, V., Li, H., Moon, S., Li, P., Kim, Y., Kim, C., Choi, H., Liu, Z., & Lee, H. (2016). Ingan-based photoanode with zno nanowires for water splitting. Nano Convergence, 3(1), [34]. https://doi.org/10.1186/s40580-016-0092-8