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Biological Construction of Single-Walled Carbon Nanotube Electron Transfer Pathways in Dye-Sensitized Solar Cells
- Source :
- ChemSusChem. 7:2805-2810
- Publication Year :
- 2014
- Publisher :
- Wiley, 2014.
-
Abstract
- We designed and mass-produced a versatile protein supramolecule that can be used to manufacture a highly efficient dye-sensitized solar cell (DSSC). Twelve single-walled carbon-nanotube (SWNT)-binding and titanium-mineralizing peptides were genetically integrated on a cage-shaped dodecamer protein (CDT1). A process involving simple mixing of highly conductive SWNTs with CDT1 followed by TiO2 biomineralization produces a high surface-area/weight TiO2 -(anatase)-coated intact SWNT nanocomposite under environmentally friendly conditions. A DSSC with a TiO2 photoelectrode containing 0.2 wt % of the SWNT-TiO2 nanocomposite shows a current density improvement by 80% and a doubling of the photoelectric conversion efficiency. The SWNT-TiO2 nanocomposite transfers photon-generated electrons from dye molecules adsorbed on the TiO2 to the anode electrode swiftly.
- Subjects :
- Anatase
Materials science
Photochemistry
General Chemical Engineering
Nanotechnology
Carbon nanotube
Spectrum Analysis, Raman
Nanocomposites
law.invention
Electron transfer
Bacterial Proteins
Microscopy, Electron, Transmission
law
Solar cell
Solar Energy
Environmental Chemistry
General Materials Science
Coloring Agents
Titanium
Nanocomposite
Electrochemical Techniques
Anode
DNA-Binding Proteins
Dye-sensitized solar cell
General Energy
Chemical engineering
Electrode
Subjects
Details
- ISSN :
- 18645631
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- ChemSusChem
- Accession number :
- edsair.doi.dedup.....219bb7f8efc27e93f68254370160220a
- Full Text :
- https://doi.org/10.1002/cssc.201402514