N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone

Filip Aniés, Zhuoran Qiao, Mohamad Insan Nugraha, Aniruddha Basu, Thomas D. Anthopoulos, Nicola Gasparini, Martin Heeney

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We report on three novel n-type conjugated polymer semiconductors incorporating carborane in the polymer backbone and demonstrate their applicability in optoelectronic devices. Comparing the optoelectronic properties of para-, meta-, and ortho-carborane isomers revealed similar energetic characteristics between the different polymers, with the carborane unit acting as a “conjugation breaker”, confining electron delocalisation to the conjugated moieties. The fabrication of all-polymer organic photovoltaic (OPV) devices and thin-film transistors (TFTs) revealed some differences in device performance between the polymers, with the meta-carborane based polymer exhibiting superior performance in both OPV and TFT devices.
Original languageEnglish (US)
Pages (from-to)124481
JournalPolymer
Volume240
DOIs
StatePublished - Dec 27 2021

Bibliographical note

KAUST Repository Item: Exported on 2022-01-19
Acknowledged KAUST grant number(s): OSR-2018-CARF/CCF-3079, OSR-2019-CRG8-4095.3
Acknowledgements: The authors thank the Engineering and Physical Sciences Research Council (EPSRC) (EP/L016702/1 and EP/T028513/1), the Royal Society and the Wolfson Foundation (Royal Society Wolfson Fellowship), The Wilkinson Charitable Foundation, and King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2019-CRG8-4095.3, No. OSR-2020-CRG8-4095.2, and No. OSR-2018-CARF/CCF-3079 for funding. The authors also thank Charlotte Rapley for her assistance in obtaining thermal measurements data.

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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