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- 저자 : Luigi Vaccaro (검색결과 1 건)
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Minjeong Lee,윤승재,Dongil Ho,Taeshik Earmme,Assunta Marrocchi,Luigi Vaccaro,김충익 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.105 No.-
In the trends of ever-growing worldwide interest for the environment/health and the corresponding legalregulations, there have been various studies to replace toxic halogenated/aromatic hydrocarbon organicsolvents commonly used in the solution-processing of organic semiconductors (OSCs) with more sustainablegreen solvents. In this paper, we fabricated ambipolar organic thin-film transistors (OTFTs) andcomplementary-like inverters by blending a p-type OSC (6,13-bis(triisopropylsilylethynyl)pentacene;TIPS-pentacene) and a n-type OSC (N,N’-di-n-octyl-3,4,9,10-perylenetetracarboxylic diimide; PTCDI-C8)in a single green solvent anisole. In particular, shellac was employed as green dielectric materials andthe electrical performance of the resulting devices were compared with those fabricated using toxic solventsor commonly used oxide-based dielectrics. The bulk-heterojunction (BHJ)-structured OTFTs in theoptimized condition exhibited typical ambipolar characteristics with relatively balanced charge carriermobilities as high as 0.042 and 0.14 cm2 V 1s 1 for hole and electron, respectively. Additionally,complementary-like inverters based on the two optimized ambipolar OTFTs showed a decent transfergain as high as 21 at negative supply voltages of 60 V. Thus, by demonstrating the applicability of greensolvents not only for OTFTs but also in the implementation of circuit devices, we expect that the resultsobtained will spark more interest for the more sustainable fabrication of OSC-based electronic devicesand their commercialization/mass-production in the relevant industrial real cases.
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