期刊
SCIENCE ADVANCES
卷 4, 期 2, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aao5758
关键词
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资金
- JSPS KAKENHI [JP17H06123, JP17H06200]
- Precursory Research for Embryonic Science and Technology (PRESTO)- Japan Science and Technology Agency (JST) [JPMJPR151E]
- PRESTO-JST Molecular Technology and Creation of New Functions [JPMJPR13K5]
- Leading Initiative for Excellent Young Researchers [Japan Society of the Promotion of Science (JSPS)]
- PRESTO-JST [JPMJPR13K5]
- Grants-in-Aid for Scientific Research [17H06200, 17H06123] Funding Source: KAKEN
Two-dimensional (2D) layered semiconductors are a novel class of functional materials that are an ideal platform for electronic applications, where the whole electronic states are directly modified by external stimuli adjacent to their electronic channels. Scale-up of the areal coverage while maintaining homogeneous single crystals has been the relevant challenge. We demonstrate that wafer-size single crystals composed of an organic semiconductor bimolecular layer with an excellent mobility of 10 cm(2) V-1 s(-1) can be successfully formed via a simple one-shot solution process. The well-controlled process to achieve organic single crystals composed of minimum molecular units realizes unprecedented low contact resistance and results in high-speed transistor operation of 20 MHz, which is twice as high as the common frequency used in near-field wireless communication. The capability of the solution process for scale-up coverage of high-mobility organic semiconductors opens up the way for novel 2D nanomaterials to realize products with large-scale integrated circuits on film-based devices.
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