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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201707256
|2 doi
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|a eng
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| 100 |
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|a Arai, Shunto
|e verfasserin
|4 aut
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|a Semiconductive Single Molecular Bilayers Realized Using Geometrical Frustration
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|c 2018
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|a Text
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|a ƒaComputermedien
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|a Date Completed 01.08.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a A unique solution-based technology to manufacture self-assembled ultrathin organic-semiconductor layers with ultrauniform single-molecular-bilayer thickness over an area as large as wafer scale is developed. A novel concept is adopted in this technique, based upon the idea of geometrical frustration, which can effectively suppress the interlayer stacking (or multilayer crystallization) while maintaining the assembly of the intralayer, which originates from the strong intermolecular interactions between π-conjugated molecules. For this purpose, a mixed solution of extended π-conjugated frameworks substituted asymmetrically by alkyl chains of variable lengths (i.e., (πCore)-Cn 's) is utilized for the solution process. A simple blade-coating with a solution containing two (πCore)-Cn 's with different alkyl chain lengths is effective to provide single molecular bilayers (SMBs) composed of a pair of polar monomolecular layers, which is analogical to the cell membranes of living organisms. It is demonstrated that the chain-length disorder does not perturb the in-plane crystalline order, but acts effectively as a geometrical frustration to inhibit multilayer crystallization. The uniformity, stability, and size scale are unprecedented, as produced by other conventional self-assembly processes. The obtained SMBs also exhibit efficient 2D carrier transport as organic thin-film transistors. This finding should open a new route to SMB-based ultrathin superflexible electronics
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|a Journal Article
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|a geometrical frustration
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|a molecular bilayers
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|a organic semiconductors
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|a self-assembly
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|a Inoue, Satoru
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|a Hamai, Takamasa
|e verfasserin
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|a Kumai, Reiji
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|a Hasegawa, Tatsuo
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|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 23 vom: 11. Juni, Seite e1707256
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|x 1521-4095
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|g volume:30
|g year:2018
|g number:23
|g day:11
|g month:06
|g pages:e1707256
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|u http://dx.doi.org/10.1002/adma.201707256
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