Abstract In this research, treated metakaolinite (TMK) was introduced into the TiO 2 photoelectrode to fabricated dye-sensitized solar cells (DSSCs). The photovoltaic have four main natural components, i.e., a photosensitizer (carotenoid bixin), (TiO /kaolinite), electrolyte (glycerine carbonate derivative), and counter-electrode (carbon). Their stability, reusability, equivalent circuit were s...

The Journal of Physical Chemistry C is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Outer-Sphere Redox Couples as Shuttles in Dye-Sensitized Solar Cells. Performance Enhancement Based on Photoelectrode Modification via Atomic Layer Deposition Thomas W. Hamann, Omar K. Farha, and Joseph T. Hupp J. Phys. Chem. C, 2008, 112 (49), 19756-19764 ...

A p-type heterojunction photoelectrode consisting of platinized CuBi2O4 layered on a CuO film was prepared. The CuO|CuBi2O4|Pt electrode photo-generates H2 in pH neutral aqueous solution during visible light irradiation and exhibits a substantially enhanced photocurrent compared to CuO|Pt and CuBi2O4|Pt electrodes. Reduced electron-hole recombination by the band offsets in the heterostructure i...

A new type of nonstoichiometric rutile titanium dioxide (TiO2) film with around 15 at% oxygen vacancies homogeneously distributed throughout the bulk was prepared. The resultant films, when used as a photoelectrode, showed a photoelectrochemical water splitting activity 1.7 times that of stoichiometric TiO2 at a bias of 0.9 V vs. Ag/AgCl. This is believed to result from the synergistic effect o...

We describe our efforts towards constructing a hybrid protein-silicon neuromorphic photosensor based on the photo-active protein bacteriohodopsin. This protein displays an differential photosensitivity similar to the response of the receptive field of an X-type retinal ganglion cell. Similar bacteriohodopsin photoelectrode arrays display inherent edge detection and motion enhancement. We discus...

The light-assisted co-generation of carbon monoxide and hydrogen from carbon dioxide and water is reported. The combination of a homogeneous CO-evolving electrocatalyst and a heterogeneous H(2)-evolving photoelectrode surface provides for tunability of the H(2)/CO ratio. A total Faradaic efficiency of 102 ± 5% and a H(2)/CO ratio of 2:1 were achieved at a low homogeneous catalyst concentration ...

Rights: © 2010 The Electrochemical Society. This is the post print version of the following article: Miettunen, Kati & Ruan, Xiaoli & Saukkonen, Tapio & Halme, Janne & Toivola, Minna & Guangsheng, Huang & Lund, Peter. 2010. Stability of Dye Solar Cells with Photoelectrode on Metal Substrates. Journal of The Electrochemical Society. Volume 157, Issue 6. B814-B819. ISSN 0013-4651 (printed). DOI: ...

A platform for efficient photoelectrochemical (PEC) water splitting must fulfil different requirements: the absorption of solar spectrum should be maximized in use charge carrier generation. To avoid recombination, fast separation carriers is required and energetic positions band structure(s) optimized with respect to reactions. In these respects, constructing tandem nanostructures rationally d...