InGaN-based photoanode with ZnO nanowires for water splitting

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-...

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Detalles Bibliográficos
Autores principales: Kang, Junjie, Dang, Vinhquang, Li, Hongjian, Moon, Sungjin, Li, Panpan, Kim, Yangdoo, Kim, Chaehyun, Choi, Hakjong, Liu, Zhiqiang, Lee, Heon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korea Nano Technology Research Society 2016
Materias:
Letters
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5271167/
https://www.ncbi.nlm.nih.gov/pubmed/28191444
http://dx.doi.org/10.1186/s40580-016-0092-8
Descripción
Sumario: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/cm(2) 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.

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