主权项 |
1. A method for forming a partially transparent thin film solar panel comprising a plurality of layers, one or more of which is opaque or semi-transparent, by providing an array of unconnected round holes in one or more of the opaque or semi-transparent layers of the panel so as to provide an array of transparent or semi-transparent channels through the panel, the method comprising:
using an ink-jet print head to deliver individual droplets of a first etchant fluid onto at least a first layer of the panel, to form the array of unconnected round holes in at least the first layer of the panel; and at least one of controlling a size of the individual droplets and a position at which the individual droplets are delivered to determine a size and position of individual holes of the array of unconnected round holes formed through the first layer, each hole being formed by delivery of one or more droplets at a given point, a spacing of the individual holes being varied by controlling movement of the ink-jet print head relative to the panel and a timing of droplet release, thereby controlling the positions at which the individual droplets are delivered, or varying the size of the individual holes by controlling a volume of the individual droplets ejected by the ink-jet print head as the ink-jet print head is moved relative to the panel, whereby a light transparency factor of the panel is selectively controlled so that the light transparency factor is varied in one or two dimensions. |