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DC Field | Value | Language |
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dc.citation.endPage | 4138 | - |
dc.citation.number | 19 | - |
dc.citation.startPage | 4128 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 22 | - |
dc.contributor.author | Lee, Junghoon | - |
dc.contributor.author | Han, A-Reum | - |
dc.contributor.author | Hong, Jayeon | - |
dc.contributor.author | Seo, Jung Hwa | - |
dc.contributor.author | Oh, Joon Hak | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-22T04:41:15Z | - |
dc.date.available | 2023-12-22T04:41:15Z | - |
dc.date.created | 2013-06-12 | - |
dc.date.issued | 2012-10 | - |
dc.description.abstract | A narrow bandgap polymeric semiconductor, BOC-PTDPP, comprising alkyl substituted diketopyrrolopyrrole (DPP) and tert-butoxycarbonyl (t-BOC)-protected DPP, is synthesized and used in organic field-effect transistors (OFETs). The polymer films are prepared by solution deposition and thermal annealing of precursors featuring thermally labile t-BOC groups. The effects of the thermal cleavage on the molecular packing structure in the polymer thin films are investigated using thermogravimetric analysis (TGA), UV-vis spectroscopy, atomic force microscopy (AFM), Fourier transform infrared (FT-IR) spectroscopy, and X-ray diffraction (XRD) analysis. Upon utilization of solution-shearing process, integrating the ambipolar BOC-PTDPP into transistors shows p-channel dominant characteristics, resulting in hole and electron mobilities as high as 1.32 x 10-2 cm2 V-1 s-1 and 2.63 x 10-3 cm2 V-1 s-1, which are about one order of magnitude higher than those of the drop-cast films. Very intriguingly, the dominant polarity of charge carriers changes from positive to negative after the thermal cleavage of t-BOC groups at 200 degrees C. The solution-sheared films upon subsequent thermal treatment show superior electron mobility (mu = 4.60 x 10-2 cm2 V-1 s-1), while the hole mobility decreases by one order of magnitude (mu= 4.30 x 10-3 cm2 V-1 s-1). The inverter constructed with the combination of two identical ambipolar OFETs exhibits a gain of similar to 10. Reported here for the first time is a viable approach to selectively tune dominant polarity of charge carriers in solution-processed ambipolar OFETs, which highlights the electronically tunable ambipolarity of thermocleavable polymer by simple thermal treatment. | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.22, no.19, pp.4128 - 4138 | - |
dc.identifier.doi | 10.1002/adfm.201200940 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-84867094261 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/3076 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201200940 | - |
dc.identifier.wosid | 000309404000019 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Inversion of Dominant Polarity in Ambipolar Polydiketopyrrolopyrrole with Thermally Removable Groups | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | diketopyrrolopyrrole | - |
dc.subject.keywordAuthor | ambipolarity | - |
dc.subject.keywordAuthor | organic field-effect transistor | - |
dc.subject.keywordAuthor | thermally removable groups | - |
dc.subject.keywordAuthor | dominant polarity | - |
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