The rise of nanotechnology has been propelled by low dimensional metals. Albeit the long perceived importance, synthesis of freestanding metallic nanomembranes, or the so-called 2D metals, however has been restricted to simple metals with a very limited in-plane size ( 1 cm). With our approach, we successfully synthesized a variety of 2D metals, such as 2D high entropy alloy and 2D metallic glass, with controllable geometries and morphologies. Moreover, our approach can be readily extended to non-metals and composites, thereby opening a large window to the fabrication of a wide range of 2D materials of technologic importance which have never been reported before.

中文翻译：

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二维金属的可控大面积合成

纳米技术的兴起是由低维金属推动的。尽管长期以来人们一直认为独立金属纳米膜的合成或所谓的 2D 金属很重要，但它仅限于平面内尺寸非常有限（1 厘米）的简单金属。通过我们的方法，我们成功地合成了各种几何形状和形态可控的二维金属，例如二维高熵合金和二维金属玻璃。此外，我们的方法可以很容易地扩展到非金属和复合材料，从而为制造各种以前从未报道过的具有技术重要性的二维材料打开了一个大窗口。