Sample preparation is significantly important to the high-resolution transmission electron microscopy (HRTEM) characterization of nanomaterials. However, many general organic solvents can dissolve the necessary organic polymer support layer in TEM grid, which causes it difficult to obtain high-quality samples of oil-soluble nanomaterials. In this study, a new sample preparation method for oil-soluble nanomaterials has been developed by using the sublimable material as a transition layer. Experiments also show that there is no damage to TEM grids and high-quality HRTEM images can be obtained via this method. This approach paves the way to applicable HRTEM sample preparation of oil-soluble nanomaterials.

中文翻译：

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可升华材料促进油溶性纳米材料的 TEM 样品制备

样品制备对于纳米材料的高分辨率透射电子显微镜 (HRTEM) 表征非常重要。然而，许多通用有机溶剂可以溶解透射电镜网格中必要的有机聚合物支撑层，导致难以获得高质量的油溶性纳米材料样品。在这项研究中，通过使用可升华材料作为过渡层，开发了一种新的油溶性纳米材料样品制备方法。实验还表明，该方法不会损坏 TEM 网格，并且可以获得高质量的 HRTEM 图像。该方法为适用于油溶性纳米材料的 HRTEM 样品制备铺平了道路。