TY - JOUR
T1 - Photoelectrochemical hydrogen generation by Ga2O3 nanowires
AU - Lam, Kin Tak
AU - Wu, Ya Ling
AU - Chang, Shoou Jinn
N1 - Publisher Copyright:
© 2017 by American Scientific Publishers All rights reserved.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
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U2 - 10.1166/sam.2017.2949
DO - 10.1166/sam.2017.2949
M3 - Article
AN - SCOPUS:85018301422
SN - 1947-2935
VL - 9
SP - 810
EP - 814
JO - Science of Advanced Materials
JF - Science of Advanced Materials
IS - 5
ER -