Bellet-Amalric Edith, Panciera Federico, Patriarche Gilles, Travers Laurent, den Hertog Martien, Harmand Jean-Christophe, Glas Frank, Cibert Joël
Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS, 38054 cedex 09 Grenoble, France.
Univ. Paris-Saclay, CNRS, Centre for Nanoscience and Nanotechnology, 91120 Palaiseau, France.
ACS Nano. 2022 Mar 22;16(3):4397-4407. doi: 10.1021/acsnano.1c10666. Epub 2022 Mar 11.
The growth of ZnTe nanowires and ZnTe-CdTe nanowire heterostructures is studied by in situ transmission electron microscopy. We describe the shape and the change of shape of the solid gold nanoparticle during vapor-solid-solid growth. We show the balance between one monolayer and two monolayer steps, which characterizes the vapor-liquid-solid and vapor-solid-solid growth modes of ZnTe. We discuss the likely role of the mismatch strain and lattice coincidence between gold and ZnTe on the predominance of two monolayer steps during vapor-solid-solid growth and on the subsequent self-regulation of the step dynamics. Finally, the formation of an interface between CdTe and ZnTe is described.
通过原位透射电子显微镜研究了ZnTe纳米线和ZnTe-CdTe纳米线异质结构的生长。我们描述了在气-固-固生长过程中固体金纳米颗粒的形状及其形状变化。我们展示了单层和双层台阶之间的平衡，这表征了ZnTe的气-液-固和气-固-固生长模式。我们讨论了金与ZnTe之间的错配应变和晶格匹配在气-固-固生长过程中双层台阶占主导地位以及随后台阶动力学的自我调节中可能发挥的作用。最后，描述了CdTe与ZnTe之间界面的形成。
