Tri-diketopyrrolopyrrole molecular donor materials for high-performance solution-processed bulk heterojunction solar cells.

Liu, Jianhua; Sun, Yanming; Moonsin, Preecha; Kuik, Martijn; Proctor, Christopher M; Lin, Jason; Hsu, Ben B; Promarak, Vinich et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Two new high-performance DPP-containing donor molecules employing a molecular architecture with three DPP chromorphores (tri-DPP) in conjugated backbones are synthesized and characterized. The two tri-DPP molecules with only a structural difference on alkyl substitutions, when blended with PC71 BM, lead to power conversion efficiencies up to 4.8 and 5.5%, respectively.

Medical subject headings