20120060924 | METHODS AND SYSTEMS FOR FORMING FUNCTIONALLY GRADED FILMS BY SPRAY PYROLYSIS - Method and system for forming a plurality of cadmium-sulfide layers. The method includes preparing a first solution and a second solution. The method further includes loading at least the first solution and the second solution into a pyrolysis-deposition system and placing a target structure into the pyrolysis-depositions system. The method further includes spraying the first solution through one or more first nozzles towards the target structure, forming, from the sprayed first solution, the first cadmium-sulfide layer, directly or indirectly, on the target structure, spraying the second solution through one or more second nozzles towards the target structure with at least the first cadmium-sulfide layer, and forming, from the sprayed second solution, the second cadmium-sulfide layer directly or indirectly, on the target structure. The first cadmium-sulfide layer includes a first cadmium-sulfide material the second cadmium-sulfide layer includes a second cadmium-sulfide material that are different in at least one material property. | 03-15-2012 |
20120064699 | METHODS AND SYSTEMS FOR SPRAY PYROLYSIS WITH ADDITION OF VOLATILE NON-POLAR MATERIALS - Method and system for forming a cadmium-sulfide layer on a substrate. The method includes preparing a solution and loading the solution into a pyrolysis-deposition system. The solution uses at least one cadmium-containing solute, at least one sulfur-containing solute, water, and at least one selected material. The pyrolysis-deposition system includes one or more nozzles and one or more heating devices. The method further includes placing a substrate into the pyrolysis-deposition system, adjusting a distance between the substrate and the one or more nozzles, heating the substrate with the one or more heating devices, and spraying the solution including the selected material towards the substrate. The selected material satisfies at least one property selected from a group consisting of the selected material being non-polar, the selected material having at least higher volatility than water, and the selected material having at least lower heat capacity than water. | 03-15-2012 |