Photochemical cell

摘要

The process involves formation of a sandwich structure from layers (2) deposited successively on a glass or plastic plate (5), with an overall transparent cover plate (6). A first conductive layer (7) for collection of free electrons underlies a 10 mu m TiO2 layer (8), a very thin dye layer (9), an electrolyte layer (10) and a second charge collection layer (11). The layers are formed in succession by an offset printing machine with several rollers each carrying the material for one layer of the sandwich. The glass substrate is guided along a conveyor belt and coated with an additional layer as it passes under each roller in turn.