Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 31, Pages 13157-13161Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp100637c
Keywords
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Funding
- CityU [7002295]
- U S Army International Technology Center-Pacific
- National Basic Research Program of China (973 Program) [2007CB936000, 2006CB933000]
- National High Technology Research and Development Program of China (863 Program) [2006AA03Z302, 2007AA03Z301]
- National Natural Science Foundation of China [60806028]
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We report on the synthesis of a porous hierarchical disklike ZnO nanostructure fabricated via a simple low-temperature hydrothermal method for photovoltaic applications. The hierarchical ZnO nanostructures consist of porous ZnO nanowires growing in six symmetric directions and form a disklike shape Owing to the enlarged surface area and natural electron collection routes of the ZnO hierarchical nanostructures, dye-sensitized solar cells based on these structures exhibit improved photovoltaic performance compared with that of the ZnO nanowire arrays Our results suggest that porous hierarchical nanomaterials are promising materials for applications in dye-sensitized solar cells.
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