https://scholars.lib.ntu.edu.tw/handle/123456789/576800
Title: | Functionalized Poly(phenylene ether) with high thermal stability as flexible dielectrics and substrates for organic field-effect transistors | Authors: | Chen, C.-K. Lin, Y.-C. Ercan, E. Yu, P.-J. Ho, J.-C. Ueda, M. WEN-CHANG CHEN |
Issue Date: | 2021 | Journal Volume: | 96 | Source: | Organic Electronics | Abstract: | Extensive research efforts are devoted into seeking the thermally and mechanically durable dielectric materials for flexible electronics. In this work, a series of sulfonylated poly (phenylene ether)s (PPEs) were synthesized and served as gate dielectrics in the flexible OFET devices with crosslinked poly (2-allyl-6-methylphenol-co-2,6-dimethylphenol) (APPE) as substrate. The chemical structure, thermal, morphology, and dielectric properties were investigated, and the corresponding OFET devices were accordingly fabricated and characterized. We found that the discrepancy in sulfone content of PPE-xS renders the difference in thermal stability, surface polarity and dielectric constants. Among them, PPE-9kS with the highest sulfone content of 63% shows the best dielectric properties in the flexible OFET devices with hole mobility (μp) of 0.45 cm2 V?1 s?1, outperforming its parent polymer without sulfone group (PPE-9k) with μp of 0.14 cm2 V?1 s?1. Besides, the flexible device with PPE-9kS as dielectric exhibits highly retained device performance after cyclic bending or thermal treatment, which indicates the decent mechanical and thermal durability. The present study documents a practical methodology to fabricate a high-performance flexible OFET with excellent thermal and mechanical stability. ? 2021 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85108139888&doi=10.1016%2fj.orgel.2021.106225&partnerID=40&md5=ba28c1efd347316c572f5d21922a1a6b https://scholars.lib.ntu.edu.tw/handle/123456789/576800 |
ISSN: | 15661199 | DOI: | 10.1016/j.orgel.2021.106225 |
Appears in Collections: | 化學工程學系 |
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