Photoelectrochemical cell and process for the production of said cell
AssigneeNishati, Inc..
InventorGiampiero FRIZZI
Life of this patent
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Abstract
Disclosed is a photoelectrochemical cell to convert solar energy into electrical energy and to a process for the realization of the photoelectrochemical cell. The photoelectrochemical cell includes: —a first conductive external membrane; —a nanomembrane fixed to the first membrane and including titanium dioxide; —a natural pigment absorbed in the nanomembrane; —a second conductive external membrane disposed in an opposite position to the first membrane; an electrolyte, disposed between the nanomembrane and the second membrane.
Claims20
Photoelectrochemical cell to convert solar energy into electrical energy, comprising:
- a first electrically conductive external membrane;
- a nanomembrane fixed to the first membrane and comprising titanium dioxide and natural pigments;
- a second electrically conductive external membrane;
- an electrolyte, disposed between the nanomembrane and the second membrane;
- wherein at least one of said first membrane and second membrane is made with a conductive flexible polymer film.
Process for the production of a photoelectrochemical cell, wherein the following steps are comprised:
- a natural pigment is made absorb in a solution of nanocrystalline titanium dioxide in the form of monomer;
- the solution of titanium dioxide and natural pigment is made photopolymerize on a first electrically conductive membrane so as to obtain a titanium dioxide nanomembrane joined to the first membrane;
- the nanomembrane is fixed to the first membrane using a screen printing process;
- a gel of electrolyte is spread on the nanomembrane in order to obtain a layer of electrolyte;
- a second electrically conductive membrane is placed on the layer of electrolyte so as to obtain a photoelectrochemical cell comprising a first membrane, a nanomembrane, a layer of electrolyte and a second membrane, said cell being defined peripherally by a perimetric edge.
Dependencies are inferred from the claim text.