Photoelectrochemical hydrogen generation by Ga2O3 nanowires

Kin Tak Lam, Ya Ling Wu, Shoou-Jinn Chang

研究成果: Article

摘要

The authors report the growth of β-Ga2O3 nanowires using a vapor phase transport method as a photoelectrochemical photocathode for hydrogen generation by splitting water. Under light illumination, it is observed that variations of the photocurrent with bias voltage depend strongly on the morphology and crystal quality of β-Ga2O3 nanowires in electrolyte. Three-electrode photoelectrochemical (PEC) efficiencies of Ga2O3 nanowires are 0.006%, 0.803%, and 1.684% at zero bias voltage (VCE) for the samples grown at 850, 900 and 950 °C, respectively. An essential requirement of resistance to reactions such as electrochemical corrosion, photocorrosion and dissolution at the solid-liquid interface was demonstrated. The results suggest that the Ga2O3 nanowires can be applied for designing high performance PEC devices.

原文English
頁(從 - 到)810-814
頁數5
期刊Science of Advanced Materials
9
發行號5
DOIs
出版狀態Published - 2017 一月 1

指紋

Nanowires
Hydrogen
Bias voltage
Electrochemical corrosion
Photocathodes
Photocurrents
Electrolytes
Dissolution
Lighting
Vapors
Crystals
Electrodes
Water
Liquids

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

引用此文

Lam, Kin Tak ; Wu, Ya Ling ; Chang, Shoou-Jinn. / Photoelectrochemical hydrogen generation by Ga2O3 nanowires. 於: Science of Advanced Materials. 2017 ; 卷 9, 編號 5. 頁 810-814.
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Photoelectrochemical hydrogen generation by Ga2O3 nanowires. / Lam, Kin Tak; Wu, Ya Ling; Chang, Shoou-Jinn.

於: Science of Advanced Materials, 卷 9, 編號 5, 01.01.2017, p. 810-814.

研究成果: Article

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