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Metal oxide-encapsulated dye-sensitized photoanodes for dye-sensitized solar cells

United States Patent

January 12, 2016
View the Complete Patent at the US Patent & Trademark Office
Dye-sensitized semiconducting metal oxide films for photoanodes, photoanodes incorporating the films and DSCs incorporating the photoanodes are provided. Also provided are methods for making the dye sensitized semiconducting metal oxide films. The methods of making the films are based on the deposition of an encapsulating layer of a semiconducting metal oxide around the molecular anchoring groups of photosensitizing dye molecules adsorbed to a porous film of the semiconducting metal oxide. The encapsulating layer of semiconducting metal oxide is formed in such a way that it is not coated over the chromophores of the adsorbed dye molecules and, therefore, allows the dye molecules to remain electrochemically addressable.
Hupp; Joseph T. (Northfield, IL), Son; Ho-Jin (Evanston, IL)
Northwestern University (Evanston, IL)
13/ 767,270
February 14, 2013
REFERENCE TO GOVERNMENT RIGHTS This invention was made with government support under DE-SC0001059 awarded by Department of Energy. The government has certain rights in the invention.