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Original Articles

Navigating the chalcogens: Sulfur substitution for n-type organic materials

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Pages 664-668 | Received 28 Mar 2019, Accepted 29 Mar 2019, Published online: 13 Apr 2019
 

Abstract

Chalcogen substitution is commonly used in the design of new organic semiconductors. Oxygen-sulfur substitution of rylene diimides, in particular, optimizes the optoelectronic and physical properties of this promising class of n-type materials, resulting in up to three orders of magnitude improvements in electron mobilities. Herein, we describe our recent efforts to synthesize, characterize, and investigate the photophysical, electronic, and solid-state behavior of rylene diimide-based small molecules and polymers with varying degrees of thionation.

Graphical Abstract

Disclosure statement

The authors declare no competing financial interest.

Additional information

Funding

This work was supported by the NSERC of Canada, The Canadian Foundation for Innovation (CFI), and the Ontario Research Fund (ORF).

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