Experimental Adhesion Energy in van der Waals Crystals and Heterostructures from Atomically Thin Bubbles,Physical Review Letters

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Experimental Adhesion Energy in van der Waals Crystals and Heterostructures from Atomically Thin Bubbles
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-07-23 , DOI: 10.1103/physrevlett.127.046101
Elena Blundo ₁ , Tanju Yildirim ₂ , Giorgio Pettinari ₃ , Antonio Polimeni ₁

Affiliation

The formation of gas-filled bubbles on the surface of van der Waals crystals provides an ideal platform whereby the interplay of the elastic parameters and interlayer forces can be suitably investigated. Here, we combine experimental and numerical efforts to study the morphology of the bubbles at equilibrium and highlight unexpected behaviors that contrast with the common assumptions. We exploit such observations to develop an accurate analytical model to describe the shape and strain of the bubbles and exploit it to measure the adhesion energy between a variety of van der Waals crystals, showing sizable material-dependent trends.

中文翻译：

范德华晶体和原子级薄气泡异质结构中的实验粘附能

范德华晶体表面充气气泡的形成提供了一个理想的平台，可以适当地研究弹性参数和层间力的相互作用。在这里，我们结合实验和数值努力来研究平衡状态下气泡的形态，并突出与常见假设形成对比的意外行为。我们利用这些观察来开发准确的分析模型来描述气泡的形状和应变，并利用它来测量各种范德华晶体之间的粘附能，显示出相当大的材料相关趋势。

更新日期：2021-07-23

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