期刊
NANO LETTERS
卷 14, 期 1, 页码 18-23出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl402205f
关键词
Silicon; hematite; core/shell nanowire; gold nanoparticle; solar water oxidation
类别
资金
- NSFC [51072025]
- National Basic Research Program of China [2012CB932400]
- Beijing Natural Science Foundation [2112021]
- Fok Ying Tung Education Foundation [121047]
- Beijing Nova Program [2008B24]
- Fundamental Research Funds or the Central Universities [2012LZD02]
We report the facile fabrication of three-dimensional (3D) silicon/hematite core/shell nanowire arrays decorated with gold nanoparticles (AuNPs) and their potential application for sunlight-driven solar water splitting. The hematite and AuNPs respectively play crucial catalytic and plasmonic photosensitization roles, while silicon absorbs visible light and generates high photocurrent. Under simulated solar light illumination, solar water splitting with remarkable efficiency is achieved with no external bias applied. Such a nanocomposite photoanode design offers great promise for unassisted sunlight-driven water oxidation, and further stability and efficiency improvements to the device will lead to exciting prospects for practical solar water splitting and artificial photosynthesis.
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