A polymeric ionic liquid as a cathode interlayer of organic photovoltaics with improved reproducibility

Chem Commun (Camb). 2019 Mar 5;55(20):2956-2959. doi: 10.1039/c8cc10222h.

Abstract

A polymeric ionic liquid (PIL) was synthesized from a small-molecule one (MIL, the monomer), and they were used as cathode interlayers in organic solar cells. Compared with the MIL, the PIL can form a more uniform film for full coverage of an active layer and efficient cathode modification, resulting in higher device efficiency and reproducibility.