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Abstract

Dye Sensitized Solar Cells (DSSCs) and Photoelectrochemical Cells (PECs) have shown great progress toward conversion of light to electricity and chemical fuels in past. However, the presence of liquid electrolytes poses challenges in integration of large area modules, difficulty in implementing tandem architectures and sealing issues which lead to lower lifetimes of the modules. This invention addresses these issues by means of a novel design consisting of multiple nested concentric tubes leading to multi-cell tandem architecture of DSSCs and PECs. Each tube of this design comprises an electrode. At least one of the electrodes in this design is responsive to light and carries electronic charge (electrons or holes). The space between the tubes is filled with an electrolyte carrying ionic charge and participating in redox processes with the electrodes. This design facilitates higher efficiency, better lifetimes and a facile method of integration of large area modules.

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First Claim