Definition of "nanopillar" [nanopillar]

• A nanosized pillar, especially one that is a constituent of a metamaterial (noun)

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• "Dongchan, my amazing postdoc, was able to make individual 100-nanometer-diameter tensile metallic glass nanopillar samples, which no one had ever done before, and then used our custom-built in situ mechanical deformation instrument, SEMentor, to perform the experiments."
• "This microscope image shows the layers of a solar cell built on a nanopillar substrate."
• "Dongchan, my amazing postdoc, was able to make individual 100-nm-diameter tensile metallic glass nanopillar samples, which no one had ever done before, and then used our custom-built in situ mechanical deformation instrument, SEMentor, to perform the experiments."