Issue 5, 2024

Nanoscale fabrication of heterostructures in thermoelectric SnTe

Abstract

Enhancing the performance of thermoelectric materials is demanded to develop strategies for introducing multidimensional microstructures into materials to induce full-scale phonon scattering while ensuring electrical transport performance. Herein, a previously unreported rhombohedral h-SnTe (R[3 with combining macron]m) has been achieved in the nanoscale dimension by the electron beam irradiation of β-SnTe (Fm[3 with combining macron]m) materials. The h-SnTe structure contains interlayer van der Waals gaps and exhibits metallic behavior evaluated by density-functional theory calculations, which coherently appears in the narrow-band semiconductor β-SnTe matrix. Our results provide a strategy for modifying the properties of SnTe-based thermoelectric materials and designing nanostructured chalcogenide heterostructures via electron beam irradiation.

Graphical abstract: Nanoscale fabrication of heterostructures in thermoelectric SnTe

Supplementary files

Article information

Article type
Communication
Submitted
15 Sep 2023
Accepted
21 Dec 2023
First published
27 Dec 2023

Nanoscale, 2024,16, 2303-2309

Nanoscale fabrication of heterostructures in thermoelectric SnTe

H. Zhang, L. Lu, W. Meng, S. Cheng and S. Mi, Nanoscale, 2024, 16, 2303 DOI: 10.1039/D3NR04646J

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