High-Efficiency All-Polymer Solar Cells with Poly-Small-Molecule Acceptors Having π-Extended Units with Broad Near-IR Absorption

Su, Ning; Ma, Ruijie; Li, Guoping; Liu, Tao; Feng, Liang−Wen; Lin, Chenjian; Chen, Jianhua; Song, Jun; Xiao, Yiqun; Qu, Junle; Lu, Xinhui; K. Sangwan, Vinod; C. Hersam, Mark; Yan, He; Facchetti, Antonio; J. Marks, Tobin

doi:10.1021/acsenergylett.1c00009

Public

High-Efficiency All-Polymer Solar Cells with Poly-Small-Molecule Acceptors Having π-Extended Units with Broad Near-IR Absorption

Published in ACS Energy Letters • Jan 29, 2021

Authors:

Ning Su

Ruijie Ma

Guoping Li

Abstract

We report two new poly-small-molecule acceptors, PYN-BDT and PYN-BDTF, which serve, by virtue of their π-extended naphthalene rings, as broad optical cross-section macromolecular absorbers (extending to ∼900 nm; Δ E opticalgap = 1.38 eV) in all-polymer solar cells (APSCs). APSCs fabricated by blendi...

Subject

Quenching (fluorescence)

Polymer solar cell

Materials science

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