期刊
MRS COMMUNICATIONS
卷 6, 期 1, 页码 47-60出版社
SPRINGER HEIDELBERG
DOI: 10.1557/mrc.2016.4
关键词
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资金
- KAU [4-130-36-HiCi]
- National Research Foundation of Korea (NRF) - Korean Government (MSIP) [NRF-2014R1A2A2A01007159]
We demonstrate here the design, synthesis and characterization of two new chlorinated polymers, P(NDI2HD-T2Cl2) and P(NDI2OD-T2Cl2) based on N,N-difunctionalized naphthalene diimide (NDI) and 3,3-dichloro-2,2-bithiophene (T2Cl2) moieties. Our results indicate that organic thin-film transistors (OTFTs) based on these new chlorinated polymers exhibit electron mobilities approaching 0.1 cm(2)V(-1)s(-1) (I-on:I-off similar to 10(6)-10(7)), with far less ambipolarity due to their lower highest occupied molecular orbital energies, and they are more stable under deleterious high-humidity conditions (RH similar to 60%) and upon submersion in water, compared with those fabricated with the parent non-chlorinated polymers. In addition, OTFTs fabricated with the new chlorinated polymers exhibit excellent operational stabilities with <3% degradations upon bias-stress test.
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