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Title: Chemical and entropic control on the molecular self-assembly process
Authors: Packwood, Daniel M.
Han, Patrick
Hitosugi, Taro
Author's alias: パックウッド, ダニエル
ハン, パトリック
一杉, 太郎
Issue Date: 14-Feb-2017
Publisher: Springer Nature
Journal title: Nature Communications
Volume: 8
Thesis number: 14463
Abstract: Molecular self-assembly refers to the spontaneous assembly of molecules into larger structures. In order to exploit molecular self-assembly for the bottom-up synthesis of nanomaterials, the effects of chemical control (strength of the directionality in the intermolecular interaction) and entropic control (temperature) on the self-assembly process should be clarified. Here we present a theoretical methodology that unambiguously distinguishes the effects of chemical and entropic control on the self-assembly of molecules adsorbed to metal surfaces. While chemical control simply increases the formation probability of ordered structures, entropic control induces a variety of effects. These effects range from fine structure modulation of ordered structures, through to degrading large, amorphous structures into short, chain-shaped structures. Counterintuitively, the latter effect shows that entropic control can improve molecular ordering. By identifying appropriate levels of chemical and entropic control, our methodology can, therefore, identify strategies for optimizing the yield of desired nanostructures from the molecular self-assembly process.
Description: 数理的フレームワークにより微小電線の形成過程を再現 ナノエレクトロニクスへの応用に期待. 京都大学プレスリリース. 2017-02-15.
Rights: © The Author(s) 2017. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/218201
DOI(Published Version): 10.1038/ncomms14463
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2016/170214_1.html
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