Journal
POLYMERS
Volume 15, Issue 18, Pages -Publisher
MDPI
DOI: 10.3390/polym15183713
Keywords
p-type semiconductor materials; conjugated polymer; Stille coupling; OFET device; hole mobility
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In this study, a polymer with a donor-acceptor structure was designed and prepared, and its potential as a p-type material for organic field-effect transistor (OFET) applications was tested using a solution-processing method. The polymer exhibited high molecular weights and thermodynamic stability, making it a promising material for potential organic electronics applications.
Organic polymer semiconductor materials are conveniently tuned to energy levels because of their good chemically modifiable properties, thus enhancing their carrier transport capabilities. Here, we have designed and prepared a polymer with a donor-acceptor structure and tested its potential as a p-type material for organic field-effect transistor (OFET) applications using a solution-processing method. The conjugated polymers, obtained via the polymerization of the two monomers relying on the Stille coupling reaction, possess extremely high molecular weights and thermodynamic stability. Theoretical-based calculations show that PDPP-2S-Se has superior planarity, which is favorable for carrier transport within the main chain. Photophysical and electrochemical measurements systematically investigated the properties of the material and the energy levels with respect to the theoretical values. The maximum hole mobility of the PDPP-2S-Se-based OFET device is 0.59 cm(2) V-1 s(-1), which makes it a useful material for potential organic electronics applications.
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