Carbohydrate-Containing Conjugated Polymers: Solvent-Resistant Materials for Greener Organic Electronics
- Univ. of Windsor, ON (Canada); School of Polymer Science and Engineering, Center for Optoelectronic Materials and Devices, The University of Southern Mississippi, Hattiesburg, MS 39406, USA.
- Univ. of Southern Mississippi, Hattiesburg, MS (United States)
- Univ. of Windsor, ON (Canada)
Organic semiconducting polymers are exciting materials for electronic applications because of their good mechanical and optoelectronic properties. A major advantage of organic semiconductors is their solution processability. This allows access to a variety of simple and cost-effective device fabrication methods compared to the expensive, high-temperature processing methods required for silicon-based electronics. However, these materials often have low solubility, which limits their processing to toxic halogenated solvents. Also, their limited solubility often leads to interfacial mixing during device fabrication. Herein, this work explores the incorporation of environmentally friendly carbohydrate side chains in conjugated polymers to enhance processability in eco-friendly solvents. Moreover, a mild postprocessing treatment was designed to enable solvent resistance. Isoindigo-based polymers with varied ratios of acetyl-protected galactose side chains were synthesized to improve solubility in o-anisole in the protected state, while inducing solvent resistance through intramolecular hydrogen bonding in the deprotected state. Solvent resistance was confirmed both visually upon submersion in various solvents and using UV–visible spectroscopy. Importantly, the mild basic treatment to achieve solvent resistance has no negative impact on the electronic performance of these materials in organic field-effect transistors, even after subsequent submersion in various solvents, making them a valuable platform for the production of green processable multilayer electronics.
- Research Organization:
- Univ. of Southern Mississippi, Hattiesburg, MS (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Natural Sciences and Engineering Research Council of Canada (NSERC)
- Grant/Contract Number:
- SC0019361
- OSTI ID:
- 1985422
- Alternate ID(s):
- OSTI ID: 1978217
- Journal Information:
- ACS Applied Electronic Materials, Journal Name: ACS Applied Electronic Materials Journal Issue: 4 Vol. 4; ISSN 2637-6113
- Publisher:
- ACS PublicationsCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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