论文标题
通过透射电子显微镜的玻璃纳米管的几何表征
Geometrical Characterization of Glass Nanopipettes with Sub-10 nm Pore Diameter by Transmission Electron Microscopy
论文作者
论文摘要
玻璃纳米刀齿被广泛用于纳米科学中的各种应用。在大多数应用中，重要的是表征其几何参数，例如孔径大小和尖端区域的内锥角。对于具有近10 nm孔径和薄壁厚度的纳米夹，透射电子显微镜（TEM）必须最有助于其精确的几何测量。但是，这种测量仍然是一个挑战，因为电子束照射产生的热量在很大程度上会变形量低于10 nm纳米夹。在这里，我们提供了准备TEM标本的方法，这些标本不会引起这种微小的纳米夹板的变形。
Glass nanopipettes are widely used for various applications in nanosciences. In most of the applications, it is important to characterize their geometrical parameters, such as the aperture size and the inner cone angle at the tip region. For nanopipettes with sub-10 nm aperture and thin wall thickness, transmission electron microscopy (TEM) must be most instrumental in their precise geometrical measurement. However, this measurement has remained a challenge because heat generated by electron beam irradiation would largely deform sub-10-nm nanopipettes. Here we provide methods for preparing TEM specimens that do not cause deformation of such tiny nanopipettes.
