Abstract: Method for applying a layer of a second material to a layer of a nonocrystalline first material, comprising the steps of (i) providing a layer of a nonocrystalline first material on a horizontal substrate, (ii) providing a liquid containing the second material, (iii) providing a tubular dispensing means to be disposed horizontally and provided with lateral outlet openings, (iv) disposing the dispensing means above the layer of nonocrystalline material, and (v) displacing the dispensing means and the layer of nanocrystalline material relative to each other in lateral horizontal direction of the dispensing means, while simultaneously supplying the liquid with the second material to the dispensing means, and apparatus for performing this method.

Abstract: Method for the manufacture of a photoelectrochemical cell and a cell made by this method. A disadvantage of such cells (1) is the fact that their efficiency is not sufficient for economic use. It is therefore the aim of the invention to avoid this disadvantage. The method according to the invention makes it possible to produce a photoelectrochemical cell (1) comprising a porous electrode (4), the effective surface of which is by a factor 700 greater than that of electrodes of comparable size.

Abstract: A photovoltaic cell comprising a light transmitting electrically conductive layer deposited on a glass plate or a transparent polymer sheet to which a series of titanium dioxide layers have been applied, in which at leash the last titanium dioxide layer (optionally also the second to last and third to last layer) are doped with a metal ion which is selected from a divalent or trivalent metal.