Spectroscopy of van der Waals nanomaterials: Opportunities and challenges
Spectroscopy of van der Waals nanomaterials: Opportunities and challenges
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DOI：
10.1063/5.0172132
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发表时间：
2023-10
影响因子：
3.2
通讯作者：
S. V. Mambakkam;Stephanie Law
中科院分区：
文献类型：
--
作者：
S. V. Mambakkam;Stephanie Law
范德华（vdW）材料由于其独特的机械、电子和光学特性而广泛应用，近年来对这些材料的研究引起了越来越多的兴趣。该领域最近进一步扩展到研究vdW纳米材料的行为，因为减小尺寸为与这些材料以新的方式相互作用提供了机会。然而，测量纳米材料的能带结构，这是理解约束如何影响材料性质和相互作用的关键，也面临着一些挑战。在这篇综述中，我们综述了一系列合成和表征vdW纳米材料的技术，以概述关键材料和表征挑战。这包括控制vdW纳米粒子中的费米能级，为整体或单个粒子测量准备这些粒子，以及保护原始表面免受氧化。
The study of van der Waals (vdW) materials has seen increased interest in recent years due to the wide range of uses for these materials because of their unique mechanical, electronic, and optical properties. This area has recently expanded further into studying the behavior of vdW nanomaterials as decreasing dimensions open up opportunities to interact with these materials in new ways. However, measuring the band structures of nanomaterials, which is key to understanding how confinement affects material properties and interactions, comes with several challenges. In this review, we survey a range of techniques for synthesizing and characterizing vdW nanomaterials, in order to outline the key material and characterization challenges. This includes controlling the Fermi level in vdW nanoparticles, preparing these particles for either ensemble or individual particle measurement, as well as protecting the pristine surface from oxidation.