期刊
RSC ADVANCES
卷 5, 期 113, 页码 93180-93186出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra19542j
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资金
- Photovoltaic Building Integrated Glass Tiles for Innovative Architectural Application (TIFAIN), MIUR Regione Lombardia [30221157]
The photoanode morphology is key for improving photovoltaic performance of dye-sensitized solar cells. On one side, light harvesting depends on its capability of both chemisorbing high quantity of dye and affecting the flow of light in order to enhance its optical thickness. On the other, electron transport is influenced by the crystalline domain size and shape. In this work we report on how the morphology of self-assembled hyperbranched quasi 1D nanostructures can be engineered by physical vapour deposition in order to maximize light harvesting and electron transport. High specific surface area was achieved by optimizing crystalline domain size. This way, quasi 1D nanostructures allow for high light harvesting efficiency, broadband and intense light scattering while sustain significant decrease in electron transport time. Hyperbranched nanostructures photoanodes led to a power conversion efficiency over 9%.
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