Retention of Power Conversion Efficiency – From Small Area to Large Area Polymer Solar Cells (Adv. Mater. 15/2013)



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Large area pixelated polymer solar cell design with active encapsulants for down-conversion and redirecting light is demonstrated by K. S. Narayan and Anshuman J. Das on page 2193. The large-area, vacuum-free fabrication is carried out using meltable alloys as cathodes and an architecture which permits channelizing the light back into the device utilizing appropriate fluorescent dye molecules embedded in the encapsulant.