VERTICAL ELECTRICAL CONNECTION OF PHOTOELECTROCHEMICAL CELLS

摘要

The present invention concerns a vertical electrical connection of photoelectrochemical cells, arranged side-by-side between two opposing substrates (10), at least one of which is transparent or semi- transparent, and covered, on the side facing towards the other substrate, by an electrically conductive coating (11) divided into a plurality of side-by- side regions electrically isolated by means of a corresponding number of interruptions (12), said vertical electrical connection being arranged between an electrically isolated region of the electrically conductive coating (11) of a substrate (10), in electric contact with a photoelectrochemical cell, and the electrically isolated region of the electrically conductive coating (11) of the opposing substrate (10), in contact with an adjacent photoelectrochemical cell, characterised in that it is made of three overlapping portions, that is two portions (20', 20"), respectively coupled with the conductive coating (11) of each of the two opposing substrates (10) delimiting said photoelectrochemical cells, constituted by a conductive material in the form of granules aggregated together and integrated to said conductive coating (11), the sum of the heights of said two portions (20', 20") coupled with the conductive coating (11) of each of the two substrates (10) being equal or lower than the distance between the conductive coatings (11) of said two substrates (10) and further an intermediate portion (21), connecting the two portions (20', 20") coupled with the conductive coating (11) of each of the two substrates (10), made of a conductive material constituted by a matrix of polymers and/or epoxy resins and/or organic binders, in which particles of conductive material or conductive polymers are dispersed.