Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 6, Pages 2217-2224Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ta00771a
Keywords
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Funding
- Eni, S.p.A (Italy) through the MIT Energy Initiative Program
- NSF [0645960]
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Layer-by-layer (LbL) assembly is a versatile approach to generate hybrid materials with unique properties. Here, LbL is employed to insert genetically engineered M13 bacteriophage nanowires into a porous polymeric network for efficient dye-sensitized solar cell (DSSC) photoanodes. Both dip and spray LbL processes can be utilized in fabricating novel porous titanium dioxide (TiO2) photoanodes that exhibit advantageous electron transport properties, characterized by a longer electron diffusion length compared to the nanoparticle DSSC. Incorporation of the high aspect-ratio M13 bacteriophage, which yields electron percolation pathway and facilitates electron diffusion within the photoanode, is shown to further enhance the efficiency and the diffusion length in DSSCs.
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