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Adv Mater. 2014 Sep 10;26(34):6031-5. doi: 10.1002/adma.201401179. Epub 2014 Jun 27.

Template-guided solution-shearing method for enhanced charge carrier mobility in diketopyrrolopyrrole-based polymer field-effect transistors.

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  • 1Dept. of Chemistry, Research Institute for Natural Sciences, Korea University, 5 Anam-dong, Sungbuk-gu, Seoul, 136-701, Korea.


Template-guided solution-shearing (TGSS) is used to fabricate field-effect transistors (FETs) composed of micropatterned prisms as active channels. The prisms comprise highly crystalline PTDPP-DTTE, in which diketopyrrolopyrrole (DPP) is flanked by thiophene. The FET has a maximum mobility of approximately 7.43 cm(2) V(-1) s(-1) , which is much higher than the mobility values of the thin-film transistors with solution-sheared or spin-coated films of PTDPP-DTTE annealed at 200 °C.

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


charge transport; conjugated polymers; diketopyrrolopyrrole; field-effect transistors; micro-patterning; organic electronics; polymer materials

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