We discovered a set of C₆₀ nanostructures that appear to be constructed using a universal building block made of four C₆₀ molecules on Si(111) or Ge(111) surfaces covered by an atomic layer of Tl, Pb, or their compound. The building block is a four-C₆₀ cluster having a shape reminiscent of the three-petal flower “white trillium.” Therefore, we call it “trilliumon” and the various 2D ordered nanostructures derived from it “trilliumenes.” Self-assembly of the trilliumenes is a result of an intricate interplay among the adsorbed C₆₀ molecules, metal atoms, and semiconductor substrates. Remarkably, all metal layers triggering formation of trilliumenes on the Si(111) surface have recently been reported to be the thinnest 2D superconductors. In this respect, the trilliumenes show promise to be 2D nanostructured superconductors whose properties are awaiting their exploration.

中文翻译：

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从C60“延龄球”到“延龄烯”：在金属覆盖的硅和锗上自组装2D富勒烯纳米结构

我们发现了一组C ₆₀纳米结构，这些结构似乎是使用由四个C ₆₀分子在被T1，Pb或它们的化合物的原子层覆盖的Si（111）或Ge（111）表面上构成的通用构造块构造而成的。该构件是一个四碳₆₀簇，其形状让人联想到三瓣花“白三叶草”。因此，我们称其为“ trilliumon”，而衍生自其的各种二维有序纳米结构为“ trilliumenes”。ll烯的自组装是被吸附的C ₆₀之间复杂的相互作用的结果分子，金属原子和半导体衬底。引人注目的是，最近已报道了所有在Si（111）表面上触发形成ll的金属层是最薄的2D超导体。在这方面，tri烯有望成为二维纳米结构的超导体，其性能正在等待探索。