Highly-ordered Triptycene Modifier Layer Based on Blade Coating for Ultraflexible Organic Transistors
Autor: | Shusuke Yoshimoto, Takashi Kajitani, Teppei Araki, Tsuyoshi Sekitani, Fumitaka Ishiwari, Takanori Fukushima, Takafumi Uemura, Masaya Kondo, Yoshiaki Shoji, Yuki Noda |
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Rok vydání: | 2019 |
Předmět: |
0301 basic medicine
Materials science lcsh:Medicine engineering.material Article law.invention 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Stack (abstract data type) Coating law Electronic devices lcsh:Science Molecular self-assembly chemistry.chemical_classification Multidisciplinary business.industry lcsh:R Transistor Polymer Organic semiconductor 030104 developmental biology chemistry Triptycene engineering Surface modification Optoelectronics lcsh:Q business Layer (electronics) 030217 neurology & neurosurgery |
Zdroj: | Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019) |
ISSN: | 2045-2322 |
Popis: | We present a highly ordered surface modification layer for polymers based on ambient solution-processed triptycene (Trip) derivatives for high-mobility organic thin-film transistors (OTFTs). The nested packing of Trip molecules results in the formation of 2D hexagonal arrays, which stack one-dimensionally on the surface of polymer dielectrics without anchoring groups. The Trip surface was previously shown to be preferable for the growth of organic semiconductors (OSCs), and hence for enhancing the mobility of OTFTs. However, although the Trip modifier layer has been realized by thermal evaporation in a high-vacuum environment (TVE), it still has grain-boundary disorders that hinder the optimal growth of OSCs. To fabricate OTFTs with higher mobility, a disorder-free Trip layer is needed. We developed highly ordered Trip layers on polymer dielectrics via blade coating. In addition, we clarified that the highly ordered Trip modifier layer enhances the mobility of the OTFTs by more than 40%, relative to the disordered Trip layer prepared by TVE. Finally, we realized a ring oscillator composed of OTFTs with a highly ordered Trip layer. |
Databáze: | OpenAIRE |
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