Polymer solar cells with diketopyrrolopyrrole conjugated polymers as the electron donor and electron acceptor.

Li, Weiwei; Roelofs, W S Christian; Turbiez, Mathieu; Wienk, Martijn M; Janssen, René A J · Adv Mater · 2014

basic_science · Level V

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Abstract

A new class of diketopyrrolopyrrole conjugated acceptor polymer incorporating thiazoles with low-lying energy levels, high electron mobility, and broad absorption to the near infrared region provides a power conversion efficiency of 2.9% in solar cells with a second diketopyrrolo-pyrrole polymer as the donor.