Simplified tandem polymer solar cells with an ideal self-organized recombination layer

Abstract

A new tandem architecture for printable photovoltaics using a versatile organic nanocomposite containing photoactive and interfacial materials is demonstrated. The nanocomposite forms an ideal self-organized recombination layer via a spontaneous vertical phase separation, which yields a simplified tandem structure fabricated with only four component layers and a high tandem efficiency of 10.8%.

Keywords: nonconjugated polyelectrolytes; polymer solar cells; recombination layers; tandem polymer solar cells; vertical phase separation.