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arXiv · 2301.00404

Template Mediated Formation of Colloidal Two-Dimensional Tin Telluride Nanosheets and the Role of the Ligands

Fagui He·Eugen Klein·Stephan Bartling·Siavash Saeidpour·Björn Corzilius·Rostyslav Lesyuk·Christian Klinke
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Abstract

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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Fagui He, Eugen Klein, Stephan Bartling, Siavash Saeidpour, Björn Corzilius, Rostyslav Lesyuk, Christian Klinke. 2023-01-01. Template Mediated Formation of Colloidal Two-Dimensional Tin Telluride Nanosheets and the Role of the Ligands. https://doi.org/10.1021/acs.jpcc.2c06262

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