A new architecture for printable photovoltaics overcoming conventional module limits.

Kang, Hongkyu; Hong, Soonil; Back, Hyungcheol; Lee, Kwanghee · Adv Mater · 2014

basic_science · Level V

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Abstract

A new architecture for manufacturing large-area polymer solar cells that does not produce concomitant aperture and Ohmic losses is presented. By introducing the innovative concept of metal-filamentary nanoelectrodes, which are vertically formed inside the main active layers, loss-free, widely expandable solar cells with the highest relative power conversion efficiency (ca. 90%) in organic photovoltaic systems are demonstrated.