GaN nano-pyramid arrays as an efficient photoelectrode for solar water splitting
نویسندگان
چکیده
منابع مشابه
GaN nano-pyramid arrays as an efficient photoelectrode for solar water splitting.
A prototype photoelectrode has been fabricated using a GaN nano-pyramid array structure grown on a cost-effective Si (111) substrate, demonstrating a significant improvement in performance of solar-powered water splitting compared with any planar GaN photoelectrode. Such a nano-pyramid structure leads to enhanced optical absorption as a result of a multi-scattering process which can effectively...
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Transparent ALD-grown Ta2O5 protective layer for highly stable ZnO photoelectrode in solar water splitting.
This communication describes a highly stable ZnO/Ta2O5 photoanode with Ta2O5 deposited by atomic layer deposition. The ultrathin Ta2O5 protective layer prevents corrosion of ZnO and reduces surface carrier recombination, leading to a nearly two-fold increase of photo-conversion efficiency. The transparency of Ta2O5 to sunlight is identified as the main reason for the excellent stability of the ...
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The photocatalytic splitting of water into hydrogen and oxygen using solar light is a potentially clean and renewable source for hydrogen fuel.(1,2) There has been extensive investigation into metal-oxide semiconductors such as TiO(2), WO(3), and Fe(2)O(3), which can be used as photoanodes in thin-film form.(3-5) Of the materials being developed for photoanodes, TiO(2) remains one of the most p...
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ژورنال
عنوان ژورنال: Nanotechnology
سال: 2016
ISSN: 0957-4484,1361-6528
DOI: 10.1088/0957-4484/27/45/455401