Abstract

We demonstrated an all-solution-processed electron selective layer, active layer and top electrode for large-area inverted organic solar cells. The fabricated devices are semitransparent, fully spray-coated, highly efficient and air-stable, with power efficiencies of 2.41% and 1.0% for cell areas of 0.36 and 15.25cm2, respectively. The shelf life of the cells in air is demonstrated by the ∼80% retention of original cell efficiency after 30days.

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