论文标题
本质上具有图案化的二维材料，用于选择性吸附分子和纳米群体
Intrinsically patterned two-dimensional materials for selective adsorption of molecules and nanoclusters
论文作者
论文摘要
二维（2D）材料已被广泛研究为单层1-5，垂直或外侧异质结构6-8。为了实现官能化，通常使用柔软的光刻来对单层进行图案化，并以分子9,10进行选择性地装饰。在这里，我们证明了固有图案的2D材料家族的生长。我们证明，PTSE2的单层可以在PT底物上生长，以交替的1T和1H相的三角形模式的形式生长。此外，我们表明，在Cu底物上生长的CUSE的单层中，应变弛豫导致尺寸均匀的三角形纳米孔的周期性模式。还实现了不同物种在首选图案位点的吸附，表明这些材料可以作为分子或纳米簇的选择性自组装的模板，以及具有两个不同物种的同一底物的功能化。
Two-dimensional (2D) materials have been studied extensively as monolayers 1-5, vertical or lateral heterostructures 6-8. To achieve functionalization, monolayers are often patterned using soft lithography and selectively decorated with molecules 9,10. Here we demonstrate the growth of a family of 2D materials that are intrinsically patterned. We demonstrate that a monolayer of PtSe2 can be grown on a Pt substrate in the form of a triangular pattern of alternating 1T and 1H phases. Moreover, we show that, in a monolayer of CuSe grown on a Cu substrate, strain relaxation leads to periodic patterns of triangular nanopores with uniform size. Adsorption of different species at preferred pattern sites is also achieved, demonstrating that these materials can serve as templates for selective self-assembly of molecules or nanoclusters, as well as for the functionalization of the same substrate with two different species.
