Fluorine Tuning of Morphology, Energy Loss, and Carrier Dynamics in Perylenediimide Polymer Solar Cells

Zhu, Weigang; M. Alzola, Joaquin; J. Aldrich, Thomas; L. Kohlstedt, Kevin; Zheng, Ding; E. Hartnett, Patrick; D. Eastham, Nicholas; Huang, Wei; Wang, Gang; M. Young, Ryan; C. Schatz, George; R. Wasielewski, Michael; Facchetti, Antonio; S. Melkonyan, Ferdinand; J. Marks, Tobin

doi:10.1021/acsenergylett.9b02146

Public

Fluorine Tuning of Morphology, Energy Loss, and Carrier Dynamics in Perylenediimide Polymer Solar Cells

Shared by NobleBlocks on Oct 9, 2019 • 12:00 AM UTC

Authors:

Weigang Zhu

Joaquin M. Alzola

Thomas J. Aldrich

Abstract

We investigate backbone fluorination effects in bulk-heterojunction (BHJ) polymer solar cells (PSCs) with the fluorine-poor PBDTT-FTTE and fluorine-rich PBDTTF-FTTE donor polymers, paired with the perylenediimide (PDI) 3D “propeller acceptor” Ph(PDI)3. The PBDTTF-FTTE:Ph(PDI)3 devices exhibit a >50%...

Subject

Materials science

Polymer

Morphology (biology)

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