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Get Free AccessThere are currently great needs to develop low-cost inorganic materials that can efficiently perform solar water splitting as photoelectrolysis of water into hydrogen and oxygen has significant potential to provide clean energy. We investigate the Si/TiO(2) nanowire heterostructures to determine their potential for the photooxidation of water. We observed that highly dense Si/TiO(2) core/shell nanowire arrays enhanced the photocurrent by 2.5 times compared to planar Si/TiO(2) structure due to their low reflectance and high surface area. We also showed that n-Si/n-TiO(2) nanowire arrays exhibited a larger photocurrent and open circuit voltage than p-Si/n-TiO(2) nanowires due to a barrier at the heterojunction.
Yun Jeong Hwang, Akram Boukai, Peidong Yang (2008). High Density n-Si/n-TiO<sub>2</sub>Core/Shell Nanowire Arrays with Enhanced Photoactivity. , 9(1), DOI: https://doi.org/10.1021/nl8032763.
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Type
Article
Year
2008
Authors
3
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1021/nl8032763
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