| 摘要 |
A monolithic photovoltaic dye cell assembly and method for achieving reduced ion migration through at least one intercell junction, the assembly including: (a) an electrically insulating transparent substrate; (b) a plurality of photovoltaic units arranged as parallel strips on the substrate, each unit including: (i) a transparent conductive coating disposed on the substrate; (ii) a photoanode including: (A) a porous layer of a polycrystalline semiconductor, disposed on the conductive coating, and (B) a dye, absorbed on a surface of the porous layer, the dye and the porous layer adapted to convert photons to electrons; (iii) a cathode, disposed opposite the photoanode, and including a conductive carbon layer, (iv) a porous separator layer interdisposed between the porous layer of the photoanode and the cathode; (v) an electrolyte, disposed within each of the photovoltaic units, and containing a redox species; (c) a sealant layer, at least partially disposed between the adjacent units of the photovoltaic units to electrically insulate therebetween, the conductive carbon layer disposed in electrolytic communication, via the electrolyte, with the porous layer, and (d) an ion-migration reduction system including first and second electrodes, electrically connected to a current source and forming an electrode pair, and disposed within the electrically-insulating sealant layer, the ion-migration reduction system adapted to deliver a potential between the electrodes. |
