模板介导的二维碲化锡纳米片的形成及配体的作用
Template Mediated Formation of Colloidal Two-Dimensional Tin Telluride Nanosheets and the Role of the Ligands
摘要：
我们报道了在非极性溶剂中通过前驱体热注入法胶态合成二维SnTe纳米片。在反应过程中，形成了一个重要的中间体-Sn-模板，其限定了SnTe的受限生长。这种“片状”结构给出了第一个证据，可能的2D形态形成之前的阴离子前体注入（TOP-Te）。此外，我们探讨了每个配体在反应过程中的作用。因此，我们解释的形成和形态演变的二维SnTe纳米结构从机制的角度来看，以及在分子尺度上的每个配体的作用。配体之间的相互作用为实现尺寸和形状可调的稳定低维SnTe纳米材料提供了必要条件。
英文摘要：
We report the colloidal synthesis of 2D SnTe nanosheets through precursor hot-injection in a nonpolar solvent. During the reaction, an important intermediate - Sn-template - is formed which defines the confined growth of SnTe. This "flake-like" structure gives the first evidence for the possible 2D morphology formation prior to the anion precursor injection (TOP-Te). Additionally, we explore the role of each ligand in the reaction process. Thus, we explain the formation and morphology evolution of 2D SnTe nanostructures from a mechanism perspective as well as the role of each ligand on the molecular scale. The interplay of ligands provides the necessary conditions for the realization of stable low-dimensional SnTe nanomaterials with tunable size and shape.
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