Seamless polymer solar cell module architecture built upon self-aligned alternating interfacial layers

An efficient module cell architecture of a polymer solar cell built upon self-aligned alternating interfacial layers is presented. Alternating conventional and inverted subcells are serially connected on a single compound electrode with self-aligned interfacial layers. A high relative power conversion efficiency of 82% of the large-area module cell (4.24%) to the small-sized laboratory cells (5.19%) could be obtainable.