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Single‐Crystalline Colloidal Quasi‐2D Tin Telluride

Fu Li, Jiecai Fu, Abderrezak Torche, Sascha Kull, Andreas Kornowski, Rostyslav Lesyuk, Gabriel Bester, Christian Klinke Orcid Logo

Advanced Materials Interfaces, Volume: 7, Issue: 12, Start page: 2000410

Swansea University Author: Christian Klinke Orcid Logo

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DOI (Published version): 10.1002/admi.202000410

Abstract

Tin telluride is a narrow‐gap semiconductor with promising properties for infrared (IR) optical applications and topological insulators. A convenient colloidal synthesis of quasi‐2D SnTe nanocrystals through the hot‐injection method in a nonpolar solvent is reported. By introducing the halide alkane...

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Published in: Advanced Materials Interfaces
ISSN: 2196-7350 2196-7350
Published: Wiley 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa55054
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Abstract: Tin telluride is a narrow‐gap semiconductor with promising properties for infrared (IR) optical applications and topological insulators. A convenient colloidal synthesis of quasi‐2D SnTe nanocrystals through the hot‐injection method in a nonpolar solvent is reported. By introducing the halide alkane 1‐bromotetradecane as well as oleic acid and trioctylphosphine, the thickness of 2D SnTe nanostripes can be tuned down to 30 nm, while the lateral dimensional can reach 6 µm. The obtained SnTe nanostripes are single crystalline with a rock‐salt crystal structure. The absorption spectra demonstrate pronounced absorption features in the IR range revealing the effect of quantum confinement in such structures.
Keywords: 2D nanocrystals; colloidal synthesis; narrow‐gap semiconductors; SnTe; tin telluride
College: Faculty of Science and Engineering
Issue: 12
Start Page: 2000410