Control of Two-Dimensional Nanopatterns by Adjusting Intermolecular Interactions


  • This work was funded by the Core Research for Evolutional Science and Technology (CREST) program supported by the Japan Science and Technology Agency (JST) . It was also supported by the Japan Society for the Promotion of Science (Grant No. 18350077). We thank F. Sakamoto for measuring scanning Auger Cu maps of Cu-deposited samples, T. Yamaguchi and K. Yase for discussion on the pattern formation, and T. Uchimaru and S. Tsuzuki for discussion on the intermolecular interaction.


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Ultrathin films of small organic molecules are patterned with nanostructures, the size of which is controlled by adjusting intermolecular interactions. Nanowires of controllable widths form in the mixed Langmuir–Blodgett (LB) films of long-chain fatty acid and hybrid carboxylic acid (see figure). Templates, which can confine both organic and inorganic materials, are fabricated from three-component LB films, containing an amphiphilic silane-coupling agent.